At the Take care injury clinic over the years we have had some horror stories of sports men and women & members of the general public that have had two or three cortisone injections in the same area to try and solve a problem. The success rate in these cases has been very low and the GP who administers the injection has to be pretty acurate & we have found that there are many other treatment paths to take before cortisone. All i am saying is just be carefull. Cortisone can sometimes be seen as a miracle cure but there have been many cases of cortisone abuse the main one is the proffessional football scene of the 1970 - 80s where players have been given injection after injection and can now hardley walk and are crippled with Arthritus & other ligament & joint problems