Do cold sores always have to blister over? could they just shrink and disappear? what medicine can do this?!

Question: Do cold sores always have to blister over.? could they just shrink and disappear.? what medicine can do this.?
Answers:

Not always,Yes clears even without treatment,Aciclovir commonly usedHealth Question & Answer

.?p=cold+sores">http://answers.yahoo.com/search/search_r...Health Question & Answer

I would probably have to say Abreva.? Though, I'm not exactly a professional in this field. just throwing it out there.Health Question & Answer

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Do cold sores always have to blister over? could they just shrink and disappear? what medicine can do this?!

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