Imflamation in shoulder and arm muscles for 10 months, doing a depo-medrol injection in shoulders what's my next step if no sucess with injections.

Physical therapy: Intense physical therapy is the next step. That may sound like it would hurt more than help, but nothing is further from the truth. A properly supervised therapy program including stretching, range of motion, heat or ultrasound therapy and strengthening may be more curative long term than the shots anyway. Occasionally, surgery is needed if nothing else is helping.