A member asked:

My mother in law just had some dental work done and now she has a fever blister on her lip. does this mean she has hsv-1 and is contagious?

9 doctors weighed in across 2 answers
Dr. Ankush Bansal answered

Specializes in Internal Medicine

Perhaps: If she had a previous history of hsv, then the stress of dental work can lead to a localized breakout. If it is hsv, then yes, she is contagious. Anytime there are active hsv lesions - oral or genital - then one is contagious. It's the fluid within the blister that contains the virus.

Answered 4/1/2019

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Dr. Roseller B. Tapangan answered

Specializes in

Could be!: Any physical trauma can predispose it but i believe it could be from the anesthesia effect and her unknowingly biting on her food and part of the inner buccal mucosa causing the " fever blister" lesion! see your dentist for help! regards!

Answered 7/10/2013

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