Herpes Simplex
Herpes simplex is a lifelong but manageable viral infection caused by herpes simplex virus type 1 (HSV-1) or type 2 (HSV-2). HSV-1 most commonly causes cold sores around the mouth; HSV-2 is the usual cause of genital herpes. Both types are widespread globally, where high population density and limited awareness of asymptomatic shedding contribute to transmission.
Key points
- Early warning signs such as localised tingling usually precede the appearance of small blisters that crust over within about two weeks.
- Some antiviral options are processed by the body more efficiently, cutting the number of daily doses required.
- Frequent recurrences may justify switching to continuous daily therapy, which markedly cuts flare-ups and lowers the chance of passing the virus on.
Outbreaks and what triggers them
After the first infection the virus lies dormant in nerve tissue and can reactivate. Common triggers include stress, fever, illness, sunlight, hormonal changes, and immune suppression. Outbreaks typically begin with tingling or itching, followed by clusters of small fluid-filled blisters that crust over and heal within one to two weeks. Genital outbreaks may also cause discomfort when urinating.
Antiviral treatment
Antivirals shorten the duration of outbreaks and reduce their frequency. The three standard options are aciclovir, valaciclovir, and famciclovir. Valaciclovir and famciclovir are absorbed more efficiently, so they require fewer daily doses. For people with frequent outbreaks (six or more per year), continuous suppressive therapy cuts recurrence rates significantly and also lowers the risk of passing the virus to partners.
See a doctor promptly if sores are severe or spreading, if you have eye pain or visual changes (ocular herpes), or if you are immunocompromised and develop any outbreak.
Further reading
What is herpes simplex?
Herpes simplex is a lifelong viral infection caused by herpes simplex virus type 1 or type 2. HSV-1 most commonly causes cold sores around the mouth, while HSV-2 is the usual cause of genital herpes.
What are the symptoms of herpes simplex?
Outbreaks usually begin with tingling or itching, followed by clusters of small fluid-filled blisters that crust over and heal within one to two weeks. Genital outbreaks may also cause discomfort when urinating.
How is herpes simplex treated?
Antivirals shorten the duration of outbreaks and reduce their frequency. The three standard options are aciclovir, valaciclovir, and famciclovir. For people with frequent outbreaks, continuous suppressive therapy can cut recurrence rates significantly and may lower the risk of passing the virus to partners.
When should I see a doctor about herpes simplex?
See a doctor promptly if sores are severe or spreading, if you have herpes sores near the eye or eye pain or visual changes, or if you are immunocompromised and develop any outbreak.
What medicines are available for herpes simplex?
The medicines listed for herpes simplex contain aciclovir, valaciclovir and famciclovir. Examples include Zovirax and Valtrex. Each product page lists the strengths and forms.
Can I buy medicines for herpes simplex over the counter in Thailand?
Yes, online. Yasabai does not ask for a prescription to order medicines for herpes simplex. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Can I order medicines for herpes simplex online in Thailand?
Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
How ordering works →