Ganciclovir
Ganciclovir has also been used with some success in treating "Human herpesvirus 6" infections.
Genital herpes
Once infected, there is no cure. Antiviral medications, such as acyclovir, valacyclovir, may prevent outbreaks or shorten outbreaks if they occur. The long term use of antivirals may also decrease the risk of further spread. The longer a person has the virus, the less outbreak they experience and the harder it will be to transmit to others, due to these specialty antigens and a strengthened immune system response.