Genital Herpes Treatment in Spain: What Tourists Need to Know
A private, practical guide to managing a genital herpes outbreak while in Spain — how antiviral medication works, what you can get at a pharmacy, and how to get a prescription in English without visiting a clinic.
The PrescribeMe Medical TeamLicensed physicians registered in Spain
10 min read
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Burning, tingling, and painful blisters in the genital area — if that is what brought you to this page while in Spain, take a breath. Genital herpes treatment is straightforward once you have the right medication, and getting a prescription here does not require a stressful clinic visit or explaining your situation in Spanish. We wrote this guide so you can understand exactly what is happening, what works, and how to access it quickly.
What Causes Genital Herpes and How the Virus Works
Genital herpes is caused by herpes simplex virus, most often type 2 (HSV-2), though type 1 (HSV-1 — the same virus behind cold sores) now accounts for a growing share of genital cases, particularly from oral-to-genital transmission.[1] The World Health Organization estimates that roughly 491 million people aged 15–49 worldwide carry HSV-2. It is one of the most common infections on the planet.[2]
The virus enters through tiny breaks in the skin or through mucous membranes during skin-to-skin contact. Once inside, it travels along nerve pathways and settles in a cluster of nerve cells near the base of the spine called the sacral ganglia. There it stays permanently, in a dormant state — like a file saved to a hard drive that the body cannot delete. Periodically, the virus reactivates, travels back down the nerve to the skin surface, and causes an outbreak.[3]
What triggers reactivation varies between people. Common triggers include physical stress, illness, fatigue, hormonal changes, friction during sex, and — notably for travellers — disrupted sleep, sun exposure, and the general immune strain of being in a new environment. A herpes outbreak in Spain does not mean something went wrong. It means the virus you already carry found an opening while your defences were stretched thin.
Antiviral medications cannot remove the virus from the sacral ganglia. What they do is block the virus from copying itself when it reactivates. This shortens outbreaks, reduces their severity, and — when taken daily — can suppress the virus enough to prevent outbreaks altogether in most people.[4]
A first outbreak is usually the worst. It often begins with a tingling, itching, or burning sensation in the genital area one to two days before blisters appear. Small, fluid-filled blisters then develop on or around the genitals, buttocks, or thighs. These break open within a day or two, forming shallow, painful ulcers that eventually crust over and heal.[1] Systemic symptoms are common during a first episode: fever, body aches, headache, and swollen lymph nodes in the groin. The whole process, untreated, typically lasts two to four weeks.
Recurrent outbreaks are shorter and milder. Most people with HSV-2 experience four to five recurrences in the first year, declining in frequency over time.[3] Recurrences usually lack the fever and body aches of the first episode. The blisters are fewer and smaller, and healing takes roughly five to ten days without treatment.
Starting antiviral treatment within 72 hours of symptom onset can cut an outbreak short by two to three days and reduce pain significantly. With daily suppressive therapy, recurrence rates drop by 70–80%.
The prodrome — that initial tingling or burning before blisters appear — is the most valuable window for treatment. If you recognise it and start valaciclovir immediately, you may prevent the blisters from fully forming. This is why having medication on hand (or being able to get a prescription fast) matters so much for people who know they carry the virus.
Prescription Medications for Genital Herpes Treatment
All effective genital herpes medications are antiviral drugs that require a prescription in Spain. There are no over-the-counter antiviral options for this condition. Here are the treatments a doctor will consider.
Prescription required
Valaciclovir (Valtrex)
Oral antiviral tablet — episodic treatment
Valaciclovir is a prodrug of aciclovir, meaning the body converts it into aciclovir after absorption. The advantage is better absorption from the gut — about three to five times higher than aciclovir taken directly — which allows fewer daily doses and more convenient dosing.[4] It works by blocking the enzyme the herpes virus needs to copy its DNA. Clinical trials show it shortens outbreak duration by one to two days and reduces pain when started within 72 hours of symptom onset.[5]
Typical dose
500 mg twice daily for 3–5 days (recurrence) or 1 g twice daily for 7–10 days (first episode)
How fast it works
Symptom relief within 24–48 hours; outbreak shortened by 1–2 days
Availability in Spain
Prescription only (receta médica)
Oral antiviral tablet — alternative episodic treatment
Aciclovir is the original antiviral for herpes and remains effective. It uses the same mechanism as valaciclovir — blocking viral DNA replication — but has lower oral bioavailability, which means it requires more frequent dosing (three times daily instead of twice). Clinical outcomes are equivalent to valaciclovir; the trade-off is convenience, not effectiveness.[1] Aciclovir is often slightly cheaper at Spanish pharmacies.
Typical dose
400 mg three times daily for 3–5 days (recurrence) or 5–10 days (first episode)
How fast it works
Similar to valaciclovir; symptom relief within 24–48 hours
Availability in Spain
Prescription only (receta médica)
For people who experience frequent recurrences (six or more per year, or outbreaks that cause significant distress), daily suppressive therapy reduces recurrence rates by 70–80%.[4] It also reduces the risk of transmitting the virus to a partner by approximately 48%.[6] This is a continuous daily regimen rather than a short course. If you are already on suppressive therapy at home and ran out of medication during your trip, a Spanish doctor can prescribe a continuation supply.
Typical dose
500 mg once daily (ongoing)
How fast it works
Full suppressive effect within 5–7 days of starting; reduces transmission risk immediately
Availability in Spain
Prescription only (receta médica)
Spanish pharmacies — farmacias — cannot sell antiviral tablets for genital herpes without a prescription. Unlike some countries where pharmacists have limited prescribing powers for certain conditions, Spain requires a receta médica for all oral antivirals including valaciclovir and aciclovir. Walking into a farmacia and asking for these drugs without a prescription will not work, regardless of how clearly you explain your situation.
What the pharmacy can provide without a prescription: over-the-counter pain relief such as paracetamol or ibuprofen, which helps with the aching and tenderness of an outbreak. Pharmacists can also sell topical anaesthetic creams containing lidocaine (ask for crema de lidocaína) that can numb the affected area and reduce pain during urination or movement. Saline wound wash, loose cotton underwear, and barrier creams to protect broken skin from friction are also available. These measures manage comfort but do not treat the underlying viral infection — only prescription antivirals do that. Expect to pay €3–8 for these supportive products. Once you have a prescription, generic valaciclovir or aciclovir typically costs €8–18 at any Spanish farmacia.
The Most Dangerous Myth About Herpes
Genital herpes carries more stigma than almost any other common infection, and much of that stigma is built on misinformation. One myth in particular leads directly to preventable transmission.
Myth
"You can only spread herpes when you have visible sores."
This is false and it is the single most consequential misunderstanding about herpes. HSV-2 can be transmitted through a process called asymptomatic viral shedding — periods when the virus is active on the skin surface but no blisters, ulcers, or symptoms are present. Research shows that asymptomatic shedding occurs on roughly 10–20% of days in the first year after infection, and studies estimate that up to 70% of new HSV-2 transmissions happen during these symptomless periods.[6] Daily suppressive antiviral therapy reduces shedding by about 80%, which is one of the main reasons doctors recommend it for people in sexual relationships where their partner does not carry the virus.[4]
When to See a Doctor in Person
Most genital herpes outbreaks — including first episodes — are medically manageable with oral antivirals and do not require emergency care. But certain situations call for an in-person assessment or a trip to urgencias (emergency department).
Seek in-person medical care if you experience:
Difficulty urinating or complete inability to urinate — severe swelling during a first outbreak can occasionally cause urinary retention, which requires catheterisation
High fever (above 39°C / 102°F) with widespread blisters, especially if this is your first episode
Symptoms involving the eyes — herpes keratitis (eye infection) is a medical emergency that can damage vision permanently
Signs of secondary bacterial infection — increasing redness, warmth, pus, or spreading skin redness around the ulcers
Neurological symptoms such as severe headache with neck stiffness, confusion, or tingling in the legs — these are rare but can indicate herpes meningitis[1]
If you are immunocompromised — taking immunosuppressive medication, undergoing chemotherapy, or living with uncontrolled HIV — herpes outbreaks can be more severe, longer lasting, and resistant to standard doses of antivirals. You may need higher doses or intravenous treatment. An online consultation can still be a good starting point, but be transparent about your medical history so the reviewing doctor can adjust the approach or refer you to in-person care if needed.
Speed matters. Antiviral medication is most effective when started within the first 72 hours of an outbreak — ideally during the prodromal tingling stage, before blisters even form.[5] Every day of delay means more viral replication, more tissue damage, and a longer, more painful episode.
For tourists, the usual routes to a prescription in Spain create friction at exactly the wrong time. Public hospitals involve long waits and language barriers. Private clinics cost €80–150 for a consultation, and many require in-person visits. Explaining a genital herpes outbreak in a foreign language to a receptionist in a crowded waiting room is not something most people want to do — and that discomfort causes delays that make the outbreak worse.
PrescribeMe removes that friction entirely. You complete a short medical questionnaire online, in English, from wherever you are. A licensed Spanish physician reviews your case and — if appropriate — issues a receta electrónica privada (a valid private electronic prescription) sent directly to your phone. You take it to any farmacia in Spain and walk out with your medication. The entire process is private, handled in English, and can be completed in as little as 15 minutes. No video call. No waiting room. No explaining your condition to anyone face to face. For a condition that already carries enough emotional weight, that privacy makes a real difference.
Dealing with a genital herpes outbreak in Spain? The sooner you start antiviral treatment, the shorter and milder the episode will be.
Patel R, Kennedy OJ, Clarke E, et al. 2017 European guidelines for the management of genital herpes. International Journal of STD & AIDS. 2017;28(14):1366–1379. doi:10.1177/0956462417727194
Spruance SL, Tyring SK, DeGregorio B, et al. A large-scale, placebo-controlled, dose-ranging trial of peroral valaciclovir for episodic treatment of recurrent herpes genitalis. Archives of Internal Medicine. 1996;156(15):1729–1735. doi:10.1001/archinte.1996.00440140137012
Corey L, Wald A, Patel R, et al. Once-daily valacyclovir to reduce the risk of transmission of genital herpes. New England Journal of Medicine. 2004;350(1):11–20. doi:10.1056/NEJMoa035144
National Institute for Health and Care Excellence (NICE). Herpes simplex — genital: Scenario: Management. NICE Clinical Knowledge Summary. Updated 2024. cks.nice.org.uk
This article is for informational purposes and does not replace individual medical advice. If you are unsure about the severity of your symptoms, consult a healthcare professional. Content reviewed by the PrescribeMe medical team — licensed physicians registered in Spain — April 2026.
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