Read about valtrex:
If Valtrex prevents the spread of the herpes virus. Once-daily medicine that can help reduce the number of outbreaks you have. It occurs, taking Valtrex once daily, whether or not you have symptoms, can reduce the number of incidences. Valtrex is most effective if it is started within 48 hours of when the rash first appears. Valtrex is an anti-viral drug that is believed to suppress the herpes virus and reduce the number of outbreaks you have. Valaciclovir is an antiviral drug used in the management of herpes simplex and herpes zoster As you learn more about genital herpes, and also about Valtrex, the only once-daily medicine that can help reduce the number of incidences. There are no studies that show how well Valaciclovir will work if you take it more than 24 hours after the start of signs or symptoms. Valtrex is offered in 500 mg and 1gram tablets, the active ingredient being Valaciclovir hydrochloride. If you are taking Valaciclovir for outbreak therapy, that usually means you take 500 mg twice daily for 3 days.