I am diabetic and had a frozen shoulder which I corrected myself. I bought a book from amazon.Com called the triiger point therapy workbook. My shoulder was also painful and I couldn,t raise my right arm as high as my left. Within 5 min. Of giving myself a massage on the trigger point that causes the frozen shoulder, I could raise the arm as high as the other. I don,t know if I can help here, but the arm that hurts, deeply massage the area right in back of the neck and to the right, towards the shoulder, about 3 to 5 inches down, but massage the whole area with your fingers, and you might find relief, you must do this 3 or 4 times a day, hope it helps a little. Am editing to correct spelling on book the trigger point therapy workbook. Perhaps you can find someone in your area familiar with this type of massage.