Can't: Unfortunately, cold sores are a herpes simplex virus and currently there is no cure. Some medications may shorten the duration of the lesions while others decrease the pain, for limited time periods (like while eating). As you know, usually the lesions do eventually go away on their own in about 7-10 days.
Answered 12/26/2014
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You can't: Unfortunately, once you have cold sores you can't get rid of it forever. Cold sores are caused by the herpea virus and we don't have a way to get rid of the virus.
Answered 2/6/2019
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