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A 32-year-old female asked:

Does a cold sore start off like a pimple with a white head? it's just above my lip, i popped it and a white chunk like a pimple came out. woke up next morning and it had turned into a yellow puss, painful boil type thing. what does this sound like?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 45 years experience
Infected hair: This isn't a cold sore / herpes. Try to leave it alone though the natural tendency is to mess with it.
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Last updated Jun 25, 2018

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