Prior to having surgery for my sinuses the ENT wanted to give me Kenalog to calm things down. I was injected in my buttocks. A few days later I noticed that the injection site was black and blue and I had a 6 inch area that was running down my leg, swollen and black and blue. I called the doctor and they said they must have hit something when they gave the shot. It went away, but about 2 months later I too noticed a crater sized indention was forming in my buttocks. I can't believe that a shot would do this. If I would have known, I would NEVER have had this shot.