See a doctor: There is no way to tell you what is going on without any examination. It sounds like it might be a hematoma but if it's black and major swollen it needs to be looked at.
Answered 9/14/2013
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4 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
7 doctors weighed in across 2 answers
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