Another myth debunked.
Just like our ideas about what causes heart disease, low-fat diets, the evils of saturated fats, and the safeness of GMOs, the belief that a cortisone shot will heal an injury just because it temporarily relieves pain is a bunch of hooey.
http://well.blogs.nytimes.com/2010/10/27/do-cortisone-shots-actually-make-things-worse/?_r=0