valacyclovir what is it used for
What Is Valacyclovir Used For? Valacyclovir is used to treat shingles, chickenpox, cold sores, and genital herpes. Although the drug cannot cure these conditions, it can help prevent recurrent genital herpes outbreaks and decrease the spread of the virus. In addition, valacyclovir is used for the treatment of blisters and rashes that occur as a result of the infection. Off-label uses include the treatment of chickenpox and other viral infections.