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What do you use to cure a fever blister?

Often called a cold sore. And it hurts like a MOTHER F*****
I found that 'Abreva' is best for this ailment.
One tiny drop on the sore and the pain dissipates.
Trick is, use it as soon as you feel it coming on. Warning. Don't be kissing. This malady transfers w skin contact.
ALWAYS wash hands well after applying the salve. It will be gone in less than 24 hours.
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TBone · M
Agreed! Abreva works best for me as well.