A member asked:

Will putting vitamin a and d ointment on the blister near my lip help cure it faster?

A doctor has provided 1 answer
Dr. Jason Burke answered

Specializes in Anesthesiology

Probably not: Cold sores, or fever blisters, are caused by a herpes virus. Neither vitamin a or d have been shown to improve that. You can buy an over the counter amino acid, called lysine, that has been shown in some studies to reduce the duration of fever blisters.

Answered 7/1/2015

5.4k views

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