Son has hard bump with black head on his right shoulder blade. The material below the surface of the skin moves around and hurts when touched. If squeezed a dark liquid comes fron the site and it hurts a lot. We tgiught ut was an ingrown hair but afte looking at it with 1.5 magnification it doesnt look that way. Any suggestions would be helpful.
Hi, From history it seems that you might be having infected sebaceous cyst causing this problem. It requires excision of cyst witChatDoctorplete removal of cyst. Consult surgeon and get examined. Ok and take care.