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A member asked:

I have a large red bump on the back of my arm where the muscle is. it looks like a pimple and is very painful. what is it?

A doctor has provided 1 answer
Dr. Pouya Shafipour answered

Specializes in Family Medicine

Abscess? infected: Hair follicle? These are some of the common things that it could be. I suggest putting warm compresses on it to see if it might get soft and open up/drain. If it gets worse, see a doctor for evaluation, possible incision/drainage or antibiotics.

Answered 9/29/2013

5.2k views

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