A 43-year-old member asked:
Fever blisters: zovirax (acyclovir) cream or ointment is better?
1 doctor answer
Dr. Joel Gallant answered
35 years experience in Infectious Disease
Neither: Neither is particularly effective. The best treatment to shorten the course of a cold sore or fever blister is oral valacyclovir or acyclovir, if it's given very early at the first onset of symptoms.
Answered on Feb 24, 2018
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