Herpes Treatment in Chennai: Symptoms, Testing & What Actually Works

Written and medically reviewed by Dr Shah Dupesh, MBBS, DCE, FASM — Consultant Andrologist & Sexologist, Chennai. · Last reviewed: 21 July 2026.

Here is the answer, straight away: genital herpes cannot be cured, but it can be controlled almost completely. Three antiviral tablets — acyclovir, valacyclovir and famciclovir — shorten an outbreak, and taken daily they cut recurrences by 70–80% in people who get them frequently (CDC, 2021). Daily valacyclovir 500 mg roughly halved transmission to an uninfected partner in HSV-2-discordant couples (Corey, 2004). The virus stays; the disease does not have to.

I want to say something else before the medicine, because in Chennai it matters more than the medicine. In my clinic, the herpes diagnosis does more damage than the herpes. Men come in having already read that this is “for life”, and they have quietly decided that marriage is off, that they are now a danger to everyone, that they deserve it. Almost none of that is true. As a practising sexologist in Chennai I have to keep saying the same thing: genital herpes is a skin infection that flares occasionally and then goes quiet. It does not shorten your life. It does not make you infertile. Most people who carry it never know. The rest of this page is the detail behind that sentence — what herpes actually is, how I test for it properly, the exact doses I prescribe, and what it really means for your marriage and your partner.

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Quick Facts

• There is no cure, and nobody in Chennai has one. Any clinic promising a “permanent herpes cure” is selling you something that does not exist.
• Antivirals work well. Daily suppressive therapy reduces outbreaks by 70–80% in people with frequent recurrences (CDC, 2021), cuts the days on which you shed virus from 10.8% to 2.9%, and roughly halves the risk of infecting a partner in HSV-2-discordant couples (Corey, 2004).
• Most carriers have no symptoms. That is precisely why it spreads — a partner with no sore can still pass it on.
• Two viruses, one disease. HSV-1 (classically oral) and HSV-2 (classically genital). HSV-1 now causes a large and rising share of genital herpes through oral sex.
• A swab beats a blood test. PCR on an active sore is 90.9–100% sensitive (CDC, 2021). Blood tests are for a different question entirely.
• It does not cause infertility. Genital herpes does not damage sperm, block tubes, or stop you fathering a child — if that is your worry, it belongs with an infertility specialist, not here.

If you read nothing else on this page, read the six points below. They are the ones I end up repeating in almost every consultation, and between them they answer most of what people are actually frightened of.

Which doctor should you see for herpes?

For a man, the answer is simple: see an andrologist or sexologist. Herpes is a genital-skin infection, but in men it almost never arrives alone — it comes wrapped up with worry about marriage, sex and fertility, and that is exactly what an andrologist treats. A woman should see a gynaecologist.

Whoever you see, one thing matters more than the speciality: the diagnosis must be confirmed with a swab, not settled by looking. A herpes sore cannot be told apart from syphilis or other causes by eye — a doctor who does not test is guessing, and guessing is how the serious ones get missed. At Dr Shah’s Clinic in T. Nagar we swab the same day and can start treatment straight away, for men across Chennai.

What is genital herpes?

Genital herpes is a lifelong infection of the skin and nerves caused by the herpes simplex virus, a DNA virus with two types. It is one of the commoner conditions we see at the sexual health clinic, and one of the most misunderstood. HSV-1 was traditionally the cold-sore virus of the mouth, usually caught in childhood from a relative’s kiss and nothing to do with sex. HSV-2 was traditionally the genital one, caught sexually. That neat division has broken down. Oral sex moves HSV-1 from mouth to genitals efficiently, and in younger urban populations HSV-1 now accounts for a large and rising share of first-episode genital herpes.

The distinction still matters clinically, and this is the single most useful thing to know about your own diagnosis: genital HSV-1 recurs far less often than genital HSV-2. In the study that followed this properly, the median was one recurrence in the first year for genital HSV-1, against five for HSV-2 (Benedetti, 1999). Same-looking sore, completely different future — which is exactly why typing the virus is worth doing rather than settling for “you have herpes”.

And this is not only a Western phenomenon. In a small PCR series of 33 confirmed cases of herpes genitalis from Kerala, 19 (58%) were HSV-1 and 14 (42%) HSV-2 (Mathew, 2018) — a single-centre snapshot rather than a national figure, but consistent with the international trend, where HSV-1 rose from 45% to 61% of first episodes in women over fourteen years in one Australian cohort (Durukan, 2019). The practical conclusion is not “assume it is HSV-1” but something more useful: type your virus rather than assuming HSV-2, because the two carry genuinely different outlooks.

Why it never fully leaves

The virus enters through a microscopic break in genital skin and multiplies there, producing the first crop of blisters. It then does something clever: it travels up the sensory nerve supplying that patch of skin and settles in the nerve root beside the spinal cord — the dorsal root ganglion — where it switches off. In that dormant state it makes no viral protein, so your immune system cannot see it and no drug can reach it. This is the whole reason there is no cure. Every antiviral we have works on a virus that is actively copying itself; a sleeping virus is invisible to all of them.

Periodically it reactivates, travels back down the same nerve, and produces either a visible sore or — more often — nothing you can see at all, while still shedding infectious virus from the skin. That second scenario, asymptomatic shedding, is why “I have no sores so I am safe” is the most expensive misconception in this disease. Shedding is heaviest in the first 12 months after you acquire HSV-2 (CDC, 2021).

The best study of this swabbed nearly 500 people every day for a month or more. People with a history of outbreaks were shedding virus on 20.1% of days; people who had never knowingly had an outbreak were shedding on 10.2% of days (Tronstein, 2011). So yes, silent carriers shed less often — but here is the part that matters: when they did shed, they shed the same amount of virus. Being asymptomatic makes you shed less frequently. It does not make you less infectious on the days you do. This is why the European guideline states plainly that simply avoiding sex during outbreaks is not an effective strategy for preventing transmission (IUSTI, 2024).

Genital herpes is not shingles

Worth clearing up, because searching “herpes” in India returns a great deal about the wrong condition. Herpes zoster (shingles) is a different virus — varicella zoster, the chickenpox virus — reactivating in a nerve root and producing a painful band of blisters along one strip of skin, usually on the trunk, usually on one side only, usually in someone over 50. It is not sexually transmitted. If your rash is a stripe across your ribs or back, you are reading the wrong page. Genital herpes sits on or around the genitals, buttocks and inner thighs, and comes and goes over years.

How common is genital herpes — and how common in India?

Globally, the World Health Organization estimates that 846 million people aged 15–49 are living with genital herpes — more than one in five adults in that age band — with about 42 million new infections each year, roughly one person every second (WHO, 2024; Harfouche, 2025). Of that total, around 520 million carry HSV-2 (13.3%) and 376 million have genital HSV-1. Note those two do not simply add up, because a substantial number of people carry both.

One number worth pausing on. In England, first-episode genital herpes diagnoses rose 3.1% between 2024 and 2025 — in a year when chlamydia fell 10.3%, gonorrhoea 10.9%, syphilis 13.5% and genital warts 7.3% (UKHSA, 2025). Herpes was the only one going up. The fall in warts largely reflects HPV vaccination; the falls in the bacterial infections reflect testing, treatment and reporting. Herpes has neither a vaccine nor a screening programme — which is precisely why it is the one still rising.

What we actually know about India

Let me be straight about this, because most Indian pages on this subject quote a confident-sounding national figure that does not exist. Neither ICMR nor NACO publishes a national HSV-2 seroprevalence estimate. India’s HIV sentinel surveillance does not measure it. What we have instead is a handful of good regional studies:

• The best population-based Indian data comes from a stratified random sample of 12,617 adults in Guntur, Andhra Pradesh: HSV-2 seroprevalence 5.87% — 4.70% in men, 7.07% in women (Schneider, 2010). This is the general public, not a clinic.
• Among 882 young married women in Mysore, 11.3% were HSV-2 positive (Madhivanan, 2007). Here is the detail I want you to sit with: of the 100 seropositive women, exactly one had a visible genital ulcer on examination. Ninety-nine had nothing to see.
• Among people attending Indian STI clinics, reported seroprevalence runs substantially higher — but that is a selected population and must never be quoted as a national figure.
• When Indian genital ulcers were actually tested by PCR across eight STI clinics in four states, HSV was the commonest cause at 48%, ahead of syphilis at 23%. The national syndromic algorithm used to treat these patients without testing had a sensitivity of 68% and specificity of 52% — 42% of patients were misclassified and given the wrong treatment (Prabhakar, 2012).

That last statistic is the argument for testing, made better than I could make it. From my own consulting room in T. Nagar I would add only this: genital herpes is not rare here and it is enormously under-diagnosed, because the classic Indian presentation is not a dramatic blister — it is a small recurrent sore that the man treats with a random antibiotic cream from the pharmacy and never mentions to anyone. If you want the wider picture of what we test for and how, that sits on our STD clinic in Chennai page.

How does genital herpes spread?

By skin-to-skin contact with a part of the body that is shedding virus. In practice that means vaginal, anal and oral sex; direct contact with a sore; and contact with a partner’s genital or oral skin that looks completely normal but is shedding. Saliva can carry HSV-1, which is why oral sex from a partner with cold sores — or with no visible cold sore — transmits genital HSV-1.

Three things about transmission that patients consistently get wrong:

1. A condom reduces the risk but does not remove it. Herpes lives on skin, and a condom covers only part of the skin involved. Condoms remain worth using — they measurably reduce transmission, and they protect against the infections that are curable, like chlamydia and gonorrhoea.
2. Your partner may have had it for years without knowing. “You must have cheated” is the most common and most destructive conclusion drawn in my consulting room, and it is very often wrong. A first outbreak can occur years after acquisition. I have seen this accusation break marriages over an infection that predated the marriage.
3. No sore does not mean no risk. See asymptomatic shedding, above.

Equally important is what does not transmit it. Patients scrub their bathrooms and boil their clothes over this, so let me be plain about it.

Symptoms of genital herpes

The majority of people infected with HSV-2 have either no symptoms or symptoms so mild they are attributed to something else — a shaving cut, friction, a fungal rash. This is not a footnote; it is the central fact of the disease. Most transmission comes from people who genuinely do not know.

The first outbreak

When the first episode is symptomatic it is usually the worst one. Symptoms usually appear 2 to 12 days after exposure (CDC, 2021), occasionally longer. Typically there is a cluster of small fluid-filled blisters on the penis, scrotum, foreskin, buttocks, inner thigh or around the anus. Within a day or two the blisters break, leaving shallow, genuinely painful ulcers that crust and heal. A true first infection often comes with systemic upset — fever, body ache, headache, and tender swollen glands in the groin. Urination can burn severely if a lesion sits near the urethra — a symptom that overlaps with gonorrhoea and chlamydia, which is another reason not to self-diagnose. Left untreated the whole episode can run up to four weeks.

Recurrences

Recurrences are milder, shorter and more localised — usually a small patch in roughly the same place each time, healing in about a week to ten days, without fever. Many people get a warning: 24 to 48 hours of tingling, itching, burning or a shooting ache down the thigh before anything is visible. That warning is called the prodrome, and it is clinically valuable, because episodic treatment started during the prodrome works considerably better than treatment started once the blister has formed.

Common triggers my patients report are illness and fever, anything that weakens immunity, physical exhaustion, sleep debt, significant stress, and local friction.

Now the part that is usually oversold to patients, so let me give you the real shape of it. On average, recurrences do become less frequent. In the study that followed this longest, a third of people dropped by two or more recurrences between the first and second year, and by year five the median had fallen by two. But this is an average, not a promise: about one in four people had more recurrences in year five than in year one (Benedetti, 1999). If yours get worse for a while, you are not an anomaly and you have not done anything wrong — it is a reason to discuss suppressive therapy, not a reason to doubt the diagnosis.

Two smaller points that patients worry about and rarely ask. Autoinoculation — spreading the virus from the genitals to another part of your own body, usually the fingers or nearby skin, and rarely but seriously the eye — is uncommon but real, and is the reason not to touch a sore and then rub your eye; wash your hands after applying anything. And breastfeeding is safe with genital herpes, provided there is no herpetic lesion on the breast itself.

What else looks like this?

A genital ulcer is not automatically herpes, and this is where guessing gets expensive. The classic differences:

A painless ulcer is a syphilis chancre until proven otherwise, and syphilis is curable with a single injection — which is precisely why the test matters more than the eyeball.

How is genital herpes diagnosed? (HSV testing explained)

Properly diagnosing herpes is genuinely more interesting than treating it, because the wrong test asked at the wrong moment causes an extraordinary amount of unnecessary misery. There are two entirely different questions, and they need two different tests.

If you have a sore right now: swab it

The test of choice is a PCR (NAAT) swab taken directly from the base of an active lesion. It detects viral DNA, it tells you whether it is HSV-1 or HSV-2, and FDA-cleared assays run at 90.9% to 100% sensitivity with high specificity (CDC, 2021). Viral culture, the older method, is far less sensitive and drops further as the lesion crusts over — it is largely obsolete where PCR is available, and PCR is available across Chennai.

Two practical points. First, swab early — a fresh blister or a moist ulcer gives an excellent yield, while a dry crusted lesion five days old may give a false negative. If you have a sore today, come today. Second, if a laboratory offers you viral culture instead of PCR, decline it. In a direct comparison, culture found HSV in 34% of samples where PCR found it in 57% (Ramaswamy, 2004) — and culture degrades further in heat, with one study finding PCR outperformed culture by 3.8-fold in winter but 8.8-fold in summer because the specimens spoil in transit (Wald, 2003). In a Chennai summer, that is not a footnote. That same visit is also the right moment to screen for the infections that travel with herpes — gonorrhoea, chlamydia, syphilis and HIV — because a genital ulcer of any cause is a marker of exposure, not just of herpes.

If you have no sore: the blood test, and its traps

With no lesion to swab, the only option is a blood test for antibodies. This is where things go wrong, so read this section carefully.

Ask for type-specific IgG serology — the assay based on glycoprotein G, which distinguishes HSV-1 antibody from HSV-2 antibody. A non-type-specific “HSV antibody” result is close to useless, because most Indian adults carry HSV-1 from childhood, so a positive tells you nothing about your genitals.

Two traps follow.

Trap one: HSV IgM. Laboratories across India routinely add “HSV IgM” to STD panels and patients routinely panic at the result. IgM testing for herpes is not recommended. It does not reliably indicate a recent or new infection — it can turn positive during a recurrence of an infection you have carried for a decade, and it cross-reacts between HSV-1 and HSV-2. I have consoled a great many people who were told they had a “fresh infection”, with all the marital catastrophe that implies, on the strength of an IgM that should never have been ordered. If a lab reports it, ignore it.

Trap two: the low-positive IgG. Type-specific IgG results come with an index value, and low positives are frequently false. In the study behind the CDC’s warning, the widely used HerpeSelect HSV-2 assay had a positive predictive value of just 50.7% — half of all positive results in that clinical setting were false (Agyemang, 2017). The CDC quantifies the same problem as assay specificity: 57.4% overall, falling to 39.8% at index values of 1.1–2.9 (CDC, 2021). The low band is where it performs worst. In plain terms: an HSV-2 IgG of 1.4 is closer to a coin toss than a diagnosis. Any HSV-2 IgG with an index below 3.0 needs confirmation by a second, different assay before you accept it — and nobody should be told they have genital herpes on the strength of a borderline number alone.

Which brings me to something current that most doctors have not registered yet, and that I think you are entitled to know before you agree to this test. The CDC’s advice is to confirm a low-positive with “Biokit or Western blot”. The Biokit assay is no longer commercially available, and the Western blot is performed at a single reference laboratory in the United States (Abu-Raddad, 2026). For a patient in Chennai, confirmatory testing is therefore, in practical terms, not obtainable. That is a strong argument for not ordering a speculative herpes blood test in the first place — because if it comes back at 1.6, there is currently no good way to resolve it, and you will be left carrying a label that may well be wrong.

Trap three: two tests that should never have been offered to you. Some Indian laboratories bundle HSV DNA PCR on a blood sample into “advanced STD panels”. The CDC states plainly that HSV PCR of the blood should not be performed to diagnose genital herpes — it is a test for suspected disseminated infection, not for a sore. Equally, a swab taken from normal-looking skin when there is no lesion is not a valid test; the CDC advises against blind genital swabbing because the yield is too low to mean anything. If either appears on your bill, you paid for information you cannot use.

Timing matters too: antibodies take weeks to develop, so if you are testing after a specific exposure, repeat the serology at 12 weeks before calling it negative (CDC, 2021). And antibody is not permanent — somewhere between 12% and 30% of people lose their type-specific IgG over time (IUSTI, 2024), so a negative years later does not prove you were never infected.

So should you get a herpes blood test at all?

Often, no. Routine HSV screening of people with no symptoms is not recommended by the CDC, precisely because of the false-positive problem and the psychological harm of a wrong label. It is worth doing in specific situations: you have a partner with known genital herpes; you have recurrent genital symptoms but every swab has been negative or was taken too late; you are being evaluated for HIV or another STI where the result changes management; or you are planning a pregnancy and want to know your status. Even then, go in with your eyes open: a result between 1.1 and 3.0 will still leave you without a confirmable answer, for the reason just described. Outside those situations, a blood test frequently creates a problem rather than solving one.

Herpes treatment: the actual medicines and the actual doses

Here is something that surprised me while preparing this page. When I reviewed the pages ranking at the top of Google for herpes treatment in July 2026 — the big international hospital sites and patient charities — almost none of them stated a single dose. They name the drugs and stop. So below are the real regimens, taken from the CDC 2021 STI Treatment Guidelines, which is the standard I prescribe by.

Two honest cautions before the numbers. These are prescription antivirals, and the right regimen depends on whether this is a first episode or a recurrence, on your kidney function, on pregnancy, and on whether you are immunosuppressed — so this is information to help you understand and question your treatment, not a licence to self-medicate. Treatment is also rarely just about herpes — the same visit at our STD clinic in Chennai covers the infections that are curable. And doses must be adjusted in kidney impairment.

A first episode

Everyone with a genuine first episode should be treated, and treated for longer than a recurrence, because untreated first episodes can be prolonged and severe. Any one of the following, for 7 to 10 days (extended if healing is incomplete at 10 days):

Episodic therapy for a recurrence

Episodic therapy means keeping a course at home and starting it yourself, at the first tingle — within one day of the lesion appearing, or during the prodrome. Started then it shortens the attack by a day or two; started after the blisters are fully formed it does very little. This is why I give my regular patients a standby pack rather than making them book an appointment while the outbreak runs its course.

Suppressive therapy — one tablet a day

This is the option most patients have never been told about, and for many it is the one that changes their life. Instead of treating attacks, you take a single tablet every day and largely stop having them. Suppressive therapy reduces recurrences by 70–80% in people with frequent outbreaks (CDC, 2021). It also cuts the proportion of days on which you shed virus from 10.8% to 2.9% — a lower baseline than the 20.1% quoted earlier, because that trial sampled differently — and in the trial that randomised 1,484 couples in which one partner had HSV-2 and the other did not, a single daily 500 mg valacyclovir tablet roughly halved overall transmission (1.9% versus 3.6% over eight months) and cut symptomatic infection of the partner by 75% (Corey, 2004).

Three honest qualifications, because this is where I see couples over-read the evidence. Halved is not eliminated — people in that trial still caught herpes. Condoms are still advised alongside suppression, not instead of it (IUSTI, 2024). And that trial enrolled HSV-2 discordant couples only: there is no equivalent transmission trial for genital HSV-1, and the CDC reserves suppression in genital HSV-1 for people with frequent recurrences. So I discuss daily suppression routinely with HSV-2 discordant couples, and with HSV-1 patients only where recurrences are frequent or the worry itself warrants it.

The usual triggers to start it are frequent outbreaks — conventionally six or more a year, which applied to 38% of people in the first year after a symptomatic first episode (Benedetti, 1994) — or outbreaks that are severe or badly timed, a partner who does not have the virus, or, and I count this as a completely legitimate medical indication, the anxiety of never knowing when the next one is coming. Long-term daily use is well tolerated: the CDC advises that neither treatment interruption nor laboratory monitoring is necessary. I still review the decision with patients once a year, because for many people the natural recurrence rate falls over time and the tablet is no longer needed.

Which of the three should you be on?

All three are the same class and work equally well. The choice is practical, not pharmacological:

For most of my patients on suppression, valacyclovir once daily wins simply because a tablet you actually remember is worth more than a cheaper one you forget.

Special situations: HIV, pregnancy, severe disease and resistant herpes

The regimens above cover the great majority of people. Four situations need different handling — five rows below, because HIV needs both a suppressive and an episodic regimen — and I include them because you may be told otherwise by someone working from the standard course alone. Note particularly that the doses in HIV are higher, not the same — valacyclovir suppression is twice daily rather than once.

Dr Shah’s protocol: topical imiquimod for sores that will not settle

Two related situations are not in the table but deserve a sentence. Herpes meningitis — severe headache with neck stiffness and light sensitivity during an outbreak — is uncommon but is a hospital admission, not a tablet. And neonatal herpes is treated with intravenous acyclovir for 14 to 21 days depending on how far it has spread; it is the reason the pregnancy section below matters so much.

What about creams?

Topical antivirals — acyclovir cream and the like — have a limited role for cold sores on the lips and very little for genital herpes; oral tablets outperform them decisively. Over-the-counter creams marketed for cold sores should not be applied to genital lesions; they macerate the skin. For pain, lidocaine 1% or 2% is worth having, though it is an anaesthetic, not a treatment.

There is one further topical that is not an antiviral at all, and I use it in a specific situation. It is set out below, and I have flagged it as my own protocol rather than a guideline recommendation, because that is exactly what it is.

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Herpes remedies at home: what actually helps during an outbreak

Antivirals do the heavy lifting, but an outbreak is painful and there are things worth doing while it settles. These are the measures I actually recommend, and they cost almost nothing.

• Keep the area clean and dry. Wash gently with plain water, pat dry — do not rub, and do not use antiseptic lotions or Dettol, which sting badly and delay healing.
• A salt-water or Epsom-salt sitz bath, 10 to 20 minutes. Genuinely soothing, and it helps if urination is painful.
• Loose cotton underwear. Friction and heat make everything worse; synthetic briefs are the enemy for a week.
• A cold compress — an ice pack wrapped in a cloth, never ice directly on the skin.
• Plain paracetamol or ibuprofen for pain.
• Lidocaine 1–2% ointment applied before passing urine, if that is the worst part.
• Pass urine sitting in a mug of warm water if it is burning severely. It sounds undignified; it works, and it prevents the retention that occasionally lands men in hospital.
• No sex until everything has healed — and understand that a condom does not make sex safe during an active outbreak, because the lesions extend beyond what it covers.

One caution about all of the above: if the sore is not behaving like herpes — painless, single, or not healing — home care is the wrong track and you should be tested for syphilis instead.

What does not help: applying antibiotic creams (herpes is a virus), bursting the blisters (this spreads it and invites bacterial infection), and applying turmeric, toothpaste or lime to the raw skin, all of which I have seen and none of which end well.

Is there an HSV cure — and is anyone in Chennai offering one?

No, and this deserves a straight answer rather than a hedge. There is no drug, no injection, no diet, no ayurvedic preparation, no homeopathic remedy and no procedure available anywhere in the world today that removes herpes simplex from the body. The reason is the one described earlier: the virus sleeps inside nerve cells in a state where it produces nothing for a drug to attack.

Is there an HSV cure in Chennai?

I am asked this most weeks, usually by someone who has already been promised one. The honest answer: there is no HSV cure in Chennai, in India, or anywhere else — and that applies to HSV-1 and HSV-2 equally. No clinic in this city has access to a treatment that the rest of the world does not. What is genuinely available here is the same thing available in London or Boston: accurate typing of the virus, and HSV treatment with the three antivirals set out above, which controls the disease very well without eradicating it. If someone in Chennai is offering you an HSV-1 cure or an HSV-2 cure, what they are selling is the gap between “controlled” and “gone”, and the price is usually four or five figures.

Is there an HSV-1 cure or an HSV-2 cure?

Neither. There is no HSV-1 cure and no HSV-2 cure — the two viruses behave differently in how often they recur, but they hide in nerve cells by exactly the same mechanism, and no treatment for HSV 1 or HSV 2 removes either of them. What differs is the outlook: HSV treatment for genital HSV-1 often means very few recurrences and sometimes no daily tablet at all, while HSV-2 more often warrants suppressive therapy.

Research is genuinely active, and I would rather you hear its real status than a marketing version. As of July 2026, here is where things actually stand.

Vaccines: the news is bad, and you should hear it accurately

There is no licensed herpes vaccine anywhere in the world, preventive or therapeutic. Worse, the field has just contracted sharply. GSK’s therapeutic candidate failed its primary efficacy objective and was discontinued in September 2024. Moderna’s mRNA candidate, mRNA-1608, was discontinued in November 2025 and will not proceed — a fact worth stating loudly, because several health websites are currently claiming the opposite and telling patients a Moderna vaccine is heading for Phase 3. It is not. Genocea’s candidate died years ago and the company no longer exists. What remains active is essentially one BioNTech candidate in Phase 1, with no efficacy data at all, and one early Chinese trial. If anyone tells you a herpes vaccine is around the corner, they have not checked since 2024.

Antivirals: this is where the real progress is

And here the news is genuinely good, which is why I want you to read this rather than the vaccine hype. Two once-weekly oral drugs — helicase–primase inhibitors, a different mechanism from acyclovir — have completed early trials in people with recurrent genital herpes. In those trials, a weekly tablet reduced viral shedding by 94–98% and confirmed genital lesions by around 91–97%, and a monthly dosing schedule showed real activity too. Gilead licensed the programme in December 2025 and described it as potentially the first new treatment for recurrent genital herpes in 25 years. For comparison, daily valacyclovir cuts shedding by roughly three-quarters. These are early-stage results and they must now survive larger trials — but a once-weekly or once-monthly tablet for herpes is a plausible reality this decade.

Separately, pritelivir is under FDA priority review with a decision expected in late 2026 — but read the indication carefully, because it is being misreported. It is for drug-resistant herpes in immunocompromised patients, not for ordinary recurrent genital herpes. It is also not a cure; it suppresses.

Gene-editing approaches that aim to destroy the sleeping virus in the nerve ganglion — the only strategy that could ever amount to a true cure — have achieved striking results in mice. They have never been tested in a human being, and no human trial has been registered anywhere.

An honest summary: much better treatment is plausible within a few years. A cure is not close. Nobody in Chennai has one now.

The “permanent herpes cure” trade — please read this before you pay anyone

This is the part of the page I most want people to read, because I see the financial and emotional wreckage of it every few months. A herpes diagnosis produces exactly the desperation that predatory advertising is built for, and in India that market is large: “permanent herpes cure”, “herpes ki jad se safai”, guaranteed HSV-2 eradication, imported immune boosters sold at four-figure prices per month, “detox” programmes, and clinics that will happily produce a negative IgM report afterwards as proof of cure.

How to see through all of it:

• Nobody can prove a cure with a blood test. HSV IgG antibodies stay positive for life whether or not you are having outbreaks. A “negative report after treatment” is either a different test, a different threshold, or a fiction.
• Outbreaks stop on their own. Recurrences naturally become less frequent over time and vary hugely month to month. Any treatment given during a quiet phase will look like it worked. This is what the entire industry is built on.
• A guarantee is a red flag, not a credential. No honest doctor guarantees the elimination of a latent virus.
• The supplements have been tested, and they failed. A Cochrane review of 32 randomised trials found no evidence that lysine prevents herpes at all — and remarkably, not one randomised trial of lysine has ever been done in genital herpes; every study was in cold sores, between 1978 and 1987. The “84% of users said it helped” figure quoted by sellers comes from a questionnaire, not a trial. Tea tree oil has never been trialled in genital herpes, performed poorly in a mouse genital model, and is a recognised irritant on genital skin. Echinacea was tested properly in genital herpes — a double-blind placebo-controlled crossover trial over 12 months — and produced no statistically significant benefit (Vonau, 2001).
• Ayurvedic and homeopathic “cures” have no controlled evidence whatsoever. For genital herpes specifically, the entire published literature amounts to single-patient case reports, one uncontrolled series from the year 2000, and laboratory cell work. There is not one randomised controlled trial. And because herpes recurrences naturally cluster and then fade, an uncontrolled before-and-after study is the least reliable design that could possibly be chosen for this disease.

There is also a law in this area, and it is worth knowing about even though its edges are untested. Under the Drugs and Magic Remedies (Objectionable Advertisements) Act, 1954, it is an offence to advertise any drug or “magic remedy” as curing the conditions listed in its Schedule. Entry 54 of that Schedule reads “venereal diseases, including syphilis, gonorrhoea, soft chancre, venereal granuloma and lymphogranuloma”. Herpes is not named, and I am not aware of any notification or judgment that has settled whether it falls inside that entry — so treat this as an arguable point rather than a decided one. What is not arguable is the direction of travel: in 2024 the Supreme Court restrained advertising that claimed to cure Schedule conditions, and the Ministry of AYUSH has logged tens of thousands of misleading advertisements. If you have been sold a guaranteed herpes cure, you can report it through the Ministry’s AyushSuraksha portal.

One genuine source of confusion worth naming: hepatitis C is now curable with direct-acting antivirals, and news of that has filtered into general awareness as “viruses can be cured now”. It is true — for hepatitis C, which does not go latent in nerve cells. You can read what a real viral cure looks like on our hepatitis C treatment page. Herpes is a different problem, and the comparison is the wrong one.

Herpes, pregnancy and your baby

This is the one situation where genital herpes stops being a nuisance and becomes genuinely serious — not for the mother, but for a newborn. Neonatal herpes is rare and it is severe, so the management is worth understanding properly.

The risk is concentrated in a specific scenario: a woman who acquires herpes for the first time late in pregnancy, near delivery, has a 30–50% risk of transmitting it to her baby, because she has not yet made antibodies to pass across the placenta. By contrast, a woman with long-standing recurrent herpes has a transmission risk of under 1% (CDC, 2021). The counter-intuitive conclusion follows: a woman who has had herpes for years before conceiving poses very little risk to her baby, while a brand-new infection in the third trimester is the emergency.

Standard management: daily suppressive antiviral from 36 weeks of pregnancy — acyclovir 400 mg three times daily or valacyclovir 500 mg twice daily — which reduces outbreaks at term and the need for caesarean section. Famciclovir is avoided in pregnancy (IUSTI, 2024), so the “all three drugs are interchangeable” rule that holds everywhere else on this page does not hold here. If there are active lesions or prodromal symptoms when labour begins, caesarean delivery is recommended: in the largest cohort, transmission was 1.2% with caesarean against 7.7% with vaginal delivery among women shedding virus at labour (Brown, 2003). Acyclovir is regarded as safe in pregnancy. Routine HSV blood-test screening of all pregnant women is not recommended.

I should say plainly why this section matters, because “rare and severe” is too vague to act on. Neonatal herpes affects roughly 14,000 babies a year worldwide, and untreated it kills around 60% of them (Looker, 2017). It is rare, it is treatable when caught, and it is worth the precautions below.

The practical instruction that follows for couples: if the woman is pregnant and the man has genital herpes and she does not, that couple should use condoms for every act throughout the pregnancy, and avoid vaginal and oral sex entirely in the third trimester whether or not he has a visible sore — because, as above, he can shed virus from normal-looking skin. She should also avoid receiving oral sex from anyone who gets cold sores during the third trimester, again regardless of whether a sore is visible. Suppressive therapy for him is reasonable to consider and is often offered, but it has never been shown in a trial to prevent infection of a pregnant partner, so it does not replace the condoms or the third-trimester abstinence. If you are planning a pregnancy and want this and the rest of the picture sorted out beforehand, that is exactly what premarital and pre-pregnancy testing is for.

Herpes and HIV — why they are discussed together

Genital herpes increases the risk of acquiring HIV roughly three-fold — adjusted relative risk 2.7 in men and 3.1 in women in the general population (Freeman, 2006; WHO, 2025). The mechanism is straightforward: ulcers breach the skin barrier, and herpes also draws HIV-susceptible immune cells into the genital lining even when no sore is visible. The relationship runs the other way too — people living with HIV have more frequent, more severe and longer herpes outbreaks, and need higher antiviral doses. Suppression in HIV is valacyclovir 500 mg twice daily, not once daily as in HIV-negative patients.

One thing I will not let you conclude from that three-fold figure, because it is a tempting and wrong inference: taking herpes antivirals does not protect you from HIV. The CDC states it plainly — suppressive therapy in people with HIV and HSV does not reduce the risk of transmitting either virus to a partner. Randomised trials testing acyclovir as HIV prevention were negative. Treat the herpes because it is worth treating; use condoms and PrEP for HIV.

The practical consequence is simple and I apply it without exception: anyone diagnosed with genital herpes should be tested for HIV, and vice versa. If you want to understand what that test involves and what the results mean, see our page on HIV treatment in Chennai; and if you are counting days since an exposure, the HIV window period page explains exactly when a test becomes conclusive.

Herpes rarely travels alone

An exposure that gave you herpes could have given you something else at the same time, and several of those others are curable — which makes finding them worth far more than finding the herpes. When someone comes to me with a first herpes episode, I test the full panel: HIV, syphilis (VDRL/RPR with a treponemal test), chlamydia and gonorrhoea by NAAT, and hepatitis B surface antigen with hepatitis C antibody.

Timing matters for one of them. If the exposure that worries you was within the last 72 hours, HIV post-exposure prophylaxis is time-critical and every hour counts — do not wait for a herpes lesion to declare itself first. See PEP treatment and come in the same day.

The logic is worth stating plainly: herpes is the one on that list we cannot cure. Syphilis is cured with an injection, gonorrhoea with an injection, chlamydia with a short course of tablets, hepatitis C with tablets. It would be a poor outcome to spend a consultation grieving over the incurable one while an entirely curable infection sits undiagnosed alongside it.

Telling your partner

Almost every patient asks me this before they ask about medicine, and usually with real dread. Yes, you should tell a sexual partner, and here is how I suggest doing it.

Tell them when you are both calm and clothed, not in bed, not mid-argument. Lead with facts rather than confession — it is a common skin infection carried by a large fraction of adults, most of whom do not know. Tell them what you are doing about it: that you are on suppressive treatment, which cuts transmission substantially, and that you will use condoms and will not have sex during outbreaks. Offer to bring them to a doctor with you, because their most likely question — “do I have it already?” — deserves a proper answer rather than a guess. Quite often the partner turns out to be HSV-2 positive already, and the entire crisis dissolves.

Where this conversation has already gone badly — where a couple has stopped touching each other altogether out of fear — that is its own problem and a treatable one. It is much the same ground as a sexless marriage, and it responds to being talked about rather than avoided.

Two things I ask patients not to do. Do not conclude that whoever had the first outbreak was unfaithful; the timing of a first outbreak tells you almost nothing about when the virus was acquired. And do not disclose by forwarding a lab report on WhatsApp. This conversation deserves your voice.

Herpes, marriage and fertility

In Chennai this is nearly always the real question behind the appointment, so let me answer the three parts of it directly.

Can you marry? Yes. There is no medical reason not to, and no legal or religious one. What I would ask of you is disclosure before marriage, not after — both because it is right, and because in my experience concealment is what actually damages the marriage later, far more than the virus does.

Does it affect fertility? No. Genital herpes does not lower sperm count, damage sperm, block tubes or cause infertility. It does not interfere with conception. If you are worried about fertility for other reasons, that is a separate assessment — see our infertility specialist page — but herpes is not the cause.

Can you have children? Yes, safely, with the pregnancy precautions described above. A couple where one or both partners have genital herpes can conceive naturally and deliver a healthy baby. This is routine, not exceptional.

And one more that patients rarely voice but frequently feel: herpes does not cause erectile dysfunction. If erections are the real worry, that is a separate and very treatable problem — see erectile dysfunction treatment. The fear of an outbreak, the anticipation of a difficult conversation, and the shame absolutely can — and that is treatable too, and worth raising rather than enduring.

When should you see a doctor?

Come in the same day, not next week, if any of these apply:

• Your first-ever genital sore — this is when treatment does the most good, and when the swab is most likely to be diagnostic
• You cannot pass urine, or it is so painful that you are avoiding it
• A painless ulcer — that is syphilis until a test proves otherwise
• Sores that are spreading, deeply painful, or not healing after two weeks
• Fever with widespread lesions, or a severe headache and neck stiffness
• You are pregnant, or your partner is
• You are immunosuppressed, on chemotherapy or steroids, or living with HIV
• Any lesion near the eye
• You have been told you have herpes on the basis of a blood test alone, and nobody has explained the index value to you

What herpes treatment at a Chennai clinic actually involves

Nobody describes this, which is why people put off coming. So here is the whole sequence at a herpes clinic, plainly.

The visit. You describe the history. I examine the area. If there is an active lesion, I take a swab there and then — it takes under a minute and is not painful in the way people fear. If there is no lesion, we discuss whether a blood test will actually help you or simply worry you, using the reasoning set out above. I test for the other infections in the same sitting, because that is where the curable findings are — the full panel is described on our STD clinic page, and patients travelling from further out often use the T. Nagar clinic listing to find us.

The report. PCR results typically come back within one to three days in Chennai; serology similarly. You will not be left to interpret an index value on your own.

The treatment. If it is a first episode I usually start antivirals on clinical suspicion the same day rather than waiting for the swab — treatment works best started early, and it can be stopped if the test is negative. Then we decide together between episodic and suppressive therapy.

What it should not involve. The medicines themselves are generic and inexpensive, which genuinely surprises people who have been quoted five-figure sums elsewhere. Herpes treatment does not require months of proprietary medicine, repeated “detox” courses, or a package deal. If a plan sounds long and expensive for a condition managed with a common tablet, ask what each item is for and why. Any clinic should tell you its consultation charge when you telephone to book — be wary of one that will not.

Frequently asked questions about herpes treatment

Is there a 100% cure for herpes?

No. Nothing available anywhere in the world removes herpes simplex from the body, because the virus lies dormant inside nerve cells where no drug can reach it. Any clinic offering a guaranteed permanent cure is misleading you. What does exist is very effective control: antiviral tablets that shorten attacks, and daily suppressive therapy that cuts recurrences by 70–80% in people who get them frequently.

Which doctor is best to treat herpes?

For a man, an andrologist or sexologist. Herpes is a genital-skin infection, but in men it usually comes bound up with worries about marriage, sex and fertility — which is exactly an andrologist’s field. A woman should see a gynaecologist. Whichever you choose, insist the diagnosis is confirmed with a swab rather than settled by sight, because a doctor who does not test is guessing.

Do dermatologists treat herpes?

Yes — in India, dermatology and venereology are a single postgraduate speciality (DVL), which makes a dermatologist-venereologist one of the most appropriate doctors for a genital ulcer. They are the right choice if the lesion looks unusual, if the diagnosis is uncertain, or if there is a wider rash. For men whose main concerns are marriage, sexual function or fertility, an andrologist may be a better fit.

What kind of doctor can test for herpes?

Any registered doctor can order the tests — but for a man an andrologist or sexologist is the natural choice, because herpes so rarely turns up on its own. What matters more than the title is the test itself: a PCR swab of the sore while it is fresh, or type-specific IgG rather than a plain “HSV antibody” if there is no sore. You can see what that involves at our STD clinic.

Is herpes always painful and itchy?

No. Most people who carry the virus have no symptoms at all. When there is a first episode it is usually genuinely painful, with clustered blisters, burning and sometimes fever. Recurrences are milder and often only itch or tingle. And some genital ulcers are painless — a painless ulcer points to syphilis rather than herpes, which is exactly why it needs testing rather than guessing.

Can I live a normal life with herpes?

Yes. For the overwhelming majority of people genital herpes does not shorten life, and it does not cause cancer or infertility. The exceptions needing active management are pregnancy and immunosuppression. Most people who carry it never know. You can marry, have sex and have healthy children, and for most people outbreaks become less frequent over the years. What genuinely needs managing is the disclosure conversation and, sometimes, the anxiety — both respond well to being addressed directly.

How to live with herpes as a man?

Practically: know your type, keep a standby course of antivirals at home, consider a daily tablet if outbreaks are frequent or your partner is uninfected, and tell partners before sex rather than after. The medical part is straightforward. The harder part is usually the shame, and it is worth saying that herpes has no bearing on your fertility, your erections or your worth as a partner.

What are the 9 types of herpes?

There are eight human herpesviruses, not nine, and only two cause genital herpes. They are HSV-1 and HSV-2 (cold sores and genital herpes), varicella zoster (chickenpox and shingles), Epstein–Barr virus (glandular fever), cytomegalovirus, HHV-6 and HHV-7 (roseola), and HHV-8 (Kaposi sarcoma). If you have a painful band of blisters across one side of your trunk, that is shingles — a different virus, not sexually transmitted.

How common is herpes in India?

Neither ICMR nor NACO publishes a national figure. The best population-based Indian study, of 12,617 adults in Guntur, found HSV-2 in 5.87% (Schneider, 2010). Among married women in Mysore it was 11.3% — and of the 100 who tested positive, only one had a visible ulcer (Madhivanan, 2007). When Indian genital ulcers were tested by PCR, herpes was the commonest cause at 48% (Prabhakar, 2012). It is one of the infections worth checking before marriage or pregnancy — see premarital testing.

What is the best treatment for genital herpes?

For a first episode: acyclovir 400 mg three times daily, famciclovir 250 mg three times daily, or valacyclovir 1 g twice daily, each for 7–10 days. For recurrences you either treat each attack as it starts or take one tablet daily to prevent them. All three drugs work equally well outside pregnancy, where famciclovir is avoided. These are prescription medicines.

How to make herpes go away faster?

Start treatment during the prodrome — the 24 to 48 hours of tingling before anything appears — or within one day of the sore forming. Started that early, antivirals shorten the episode by a day or two and can sometimes stop it developing at all. Started once the blisters are fully formed they do considerably less, which is why keeping a course at home matters.

How to cure herpes on lips?

Cold sores cannot be cured either, but an oral antiviral started at the first tingle shortens them; creams help little. The connection that matters for this page: oral sex transmits HSV-1 from the mouth to the genitals, which is why HSV-1 now causes a large and rising share of genital herpes in younger people. Avoid giving oral sex until a cold sore has fully healed.

Can herpes be passed on when I have no symptoms?

Yes — this is the single most important thing to understand about transmission. The virus is shed from normal-looking skin on a proportion of days with no sore present: about 20% of days in people with a history of outbreaks, and about 10% even in those who have never knowingly had one. When they shed, the amount of virus is the same (Tronstein, 2011). Avoiding sex only during outbreaks is therefore not, by itself, enough.

How long can you live with herpes without treatment?

Indefinitely. Genital herpes is not progressive and does not damage the body over time the way untreated syphilis or HIV do. Untreated, you have outbreaks that heal on their own. The reasons to treat are comfort, shortening attacks and reducing transmission — not survival. The exceptions are pregnancy, immunosuppression and any lesion near the eye, where treatment does matter urgently.

Is herpes the worst STD?

No — it is the most stigmatised, not the most dangerous. Herpes causes recurrent skin sores. Untreated HIV was fatal before modern therapy, untreated syphilis damages the brain, heart and nerves, and untreated chlamydia and gonorrhoea cause infertility. For the person who has it, herpes causes recurrent skin sores and does not damage organs the way those infections do. The two real exceptions are a newborn infected around delivery, and severe disease in someone immunosuppressed — both covered above. The gap between how serious it feels and how serious it is may still be wider for herpes than for any other infection I treat.

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