Hard to say: You have provided little information to go on.You might examine the area with a mirror and look for a shallow wound.Sometimes that will happen if scratch or rub the area when half asleep. The public site is not a chat room, any of your previous questions are buried in the archives and not available to any of the physicians on the site.
Answered 3/5/2016
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3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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