Why do you have to take Valtrex for herpes?

Valtrex (valacyclovir) is an antiviral drug. It slows the growth and spread of the herpes virus to help the body fight the infection. Valtrex is used to treat infections caused by herpes viruses, including genital herpes, cold sores, and shingles (herpes zoster) in adults.

Can you pass genital herpes when taking Valtrex?

Taking this medicine will not prevent you from passing genital herpes to other people. Herpes infections are contagious and you can infect other people even while you are taking Valtrex. Avoid sexual intercourse or use a latex condom to help keep you from spreading the virus to others. Avoid letting infected areas come into contact with other people.

Can taking Valtrex cause an outbreak?

Valtrex won’t cause an outbreak. It also won’t prevent them. Valtrex can help reduce the number of outbreaks and lessen their severity/duration, but there are no medications currently available that can prevent an outbreak.

Does Valtrex for herpes work after 72 hours?

Valtrex is indicated for the treatment of herpes zoster (shingles) in immunocompetent adults. The efficacy of Valtrex when initiated more than 72 hours after the onset of rash and the efficacy and safety of Valtrex for treatment of disseminated herpes zoster have not been established .

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Does valacyclovir prevent the spread of herpes?

Valacyclovir is used to treat cold sores in children who are at least 12 years old, or chickenpox in children who are at least 2 years old. Valacyclovir will not cure herpes and will not prevent you from spreading the virus to other people.

Is aciclovir effective for genital herpes?

It will not cure herpes , but it can lessen the symptoms of the infection. Acyclovir is used to treat infections caused by herpes viruses, such as genital herpes, cold sores, shingles, and chicken pox, as well as varicella (chickenpox), and cytomegalovirus. Acyclovir may also be used for purposes not listed in this medication guide.