See below:: For acute outbreaks: it was shown to shorten the healing by 17.5 hours on average (95% confidence interval: 2 to 22 hours) in a placebo-controlled trial.Three other trials showed negative results, but these were not published.Studies showed that the average healing time of a recurrent oral-facial herpes simplex episode in treated patients was approximately one day shorter than observed in nonrx.
Answered 9/28/2016
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No: Abreva helps shorten the length of time that they are present. The virus is still there however in a dormant state. It can come back the next time you get too much sunshine or get too exhausted etc. Use abreva or other medications at the first sign of an a cold sore outbreak.
Answered 11/26/2012
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