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A member asked:

Have tried prescription valtrex (valacyclovir) pills and ointment at the first signs. still have fever blisters twice a month or more . any preventative options.?

2 doctor answers2 doctors weighed in
Dr. Thomas Karelis
Internal Medicine 25 years experience
May need suppression: If you are having outbreaks twice a month despite using Valtrex (valacyclovir) pills and ointment when you first feel an outbreak starting, you probably need to take Valtrex (valacyclovir) or another pill on a daily basis to try and suppress the outbreaks. Patients can take Valtrex (valacyclovir) pills for up to a year every day. After 1 year you can decide with your doctor if you need to continue or if you can stop. Talk to your doctor.
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Dr. Heidi Fowler
Psychiatry 27 years experience
Fever Blisters: Regular use of Valtrex might be helpful. To prevent cold sores from occurring wash hands often. Maintain a healthful lifestyle (regular exercise, nutritious diet, adequate sleep, keeping stress at bay). Keep lips well moisturized & apply sun screen to the areas that your cold sores normally pop up. Talk with your physician about supplementing with Lysine.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jul 25, 2019


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