May
13
11:38AM | posted by Dr. Steve | May 13, 2010 | comments: 0
Cold sores contagious for more than just a few days
Cold sores, also known as fever blisters and sun blisters are fluid-filled lesions that are caused by herpes virus type one. They are very contagious and can pass from one person to another just by making skin contact. You're most contagious from the time you see the blisters until they've completely dried and crusted over. Some people are even contagious after that. Most times a cold sore lasts about two weeks but oral antiviral medications like Zovirax, Famvir and Valtrex can modestly shorten the duration if you start taking them early when you first feel the tingling on your lips.
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