Have area at elbow, not healing, swollen and bleeds a lot when opened. starting to be painful with ulcer. what doctor should i see?

Orthopedic surgeon: It may be a skin problem or an infection but near a joint start with the orthopedic surgeon and he will direct you the correct way.

Dermatologist: Is skin specialist. But all doctors are trained to treat basic medical problems, so it might be simpler to start with a primary doctor. It could be skin cancer, so make sure a doctor looks at it.