Because herpes can be transmitted from someone who has no symptoms, using the precautions listed below is not enough to prevent transmission. Recently, the Food and Drug Administration approved Valtrex for use in preventing transmission of genital herpes. It has to be taken continuously by the infected person, and while it significantly decreases the risk of the transmission of herpes, transmission can still occur.
Do not have oral-genital contact if you or your sexual partner has any symptoms or findings of oral herpes.
Using barriers such as latex condoms during sexual activity may decrease transmission when you use them consistently and correctly, but transmission can still occur since condoms may not cover all infected areas.
You can get tested to find out if you are infected with the herpes virus.