Herpes is a viral infection that can affect the skin, mouth, or genitals. Acyclovir is an antiviral medication that is used to treat herpes. It works by preventing the virus from multiplying and spreading. Acyclovir is most effective when it is taken at the first sign of symptoms, such as tingling, itching, or burning.
Gertrude B. Elion True Fan Quiz: 26 Questions to separate the true fans from the rest