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A 27-year-old female asked:

I've found sore red lump/pimple on the top of my shoulder on my back, never had this before and it hurts when i move my arm or neck what is this?

1 doctor answer2 doctors weighed in
Dr. Susanne Gee
Dermatology 27 years experience
Ruptured cyst: Could be an epidermoid cyst. These can rupture under the skin and cause a large area of swelling and redness. These can be removed relatively easily, unless they have been drained previously, in which case they can be scarred and adhere to the surrounding tissue. Frequently, if they are very inflamed, the area will improve with oral antibiotics (rx).
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Last updated Jul 14, 2017


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