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Selmer, TN
A 19-year-old male asked:

How do i know if a bump on my bottom lip is necessarily a cold sore/fever blister? it doesn't hurt, it is just one bump with a white center?

1 doctor answer2 doctors weighed in
Dr. Heidi Fowler
Psychiatry 27 years experience
Cold Sore: A cold sore is a lesion with blisters (lip, chin, cheek, nostril ; sometimes mouth) which causes burning, pain ; itching. It is filled with fluid that is teaming with the herpes simplex virus. A physician or dermatologist can help to make an accurate diagnosis.
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Last updated Jun 23, 2015

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