Assuming that it is related to tennis elbow i oncee went to doctor who said that all she could recommeend was cortisone injections but that would increase the liklihood of Arthritis in later life. So think twice about the cortisone.

She asked if I played tennis or squash oranything of that nature. When I replied no she asked whether I did anything with that arm that required rapid jerky movements. Then, realising what this might imply, she burst out laghing.