They can also help prevent other sexually transmitted infections. Condoms do not provide 100 percent protection because a lesion may be in a place the condom doesn't cover. But, used consistently, they are the best available form of prevention. If taken daily, antiviral medication helps prevent outbreaks and reduce the recurrence of virus on the skin. Early studies show that suppressive therapy may reduce the risk of transmission.
Further studies are underway to find out for sure.
The spermicides used in contraceptive foams, films and gels kill HSV in lab tests. It is not known whether spermicides can help prevent transmission of herpes. Don't use more than the recommended dose. If you have symptoms, see a health care provider as soon as possible. The test will not work if the sores have healed.