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A member asked:

What causes your lips to blister?

A doctor has provided 1 answer

Lots: Allergies to foods or medications, viral infection, sunburn, burn (food), fever... And the list could continue. If it persists, and cannot detect the origin, please visit with your doctor, he or she will help you understand why and make you feel better.

Answered 1/9/2013

5.4k views

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