A member asked:

How can valtrex (valacyclovir) and abreva work with cold sores?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

They are both: antiviral medications. Cold sores are caused by the Herpes Simplex which is a virus.

Answered 7/15/2014

3.9k views

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