What are probable causes for right shoulder pain and what can i do to treat it?

Too many to name: The differnential diagnosis for right shoulder pain is immense without further information. The best thing to do is get a formal evaluation by a physician that specializes in shoulder/musculoskeletal pain. Orthopedics, physiatrist, sports medicine, or pain physician are all reasonable choices. The problem may be from the shoulder itself or a referred pain from another area, thus requiring eval.