See Dentist/MD: Cold sores, also called fever blisters, are small blisters on the lip and around the mouth. The blisters may break open, leak a clear fluid, and then scab over after a few days. They usually heal after several days - 2 weeks. Cold sores are caused by the herpes simplex virus. If you have a persistent problem with these blisters than you need to see a dentist or an md for farther diagnosis and tx.
Answered 12/10/2013
5k views
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question