I was injected with Kenalog in Mid July 2008 to reduce the swelli...

I was injected with Kenalog in Mid July 2008 to reduce the swelling in my tonsils (I had a bad case of tonsillitis). I was asked if I have allergic reactions to steroid injections, and to my knowledge, I don't. So I was given a shot in my upper right buttock on Thursday (mid July). On the following Friday I was no better (still mid July). I was still not able to swallow my own spit, let alone eat or drink, so I went back Friday morning. I got another shot in the same location of Kelanog. I was not told of side effects; I was told the swelling would go down in my tonsils/throat. Again, no results. That Friday afternoon I was admitted into the hospital for care. A weekend of fluids and other drugs got the infection out. I stayed infection free for two weeks. It hurt for a week afterwards on my right buttock, but no bruising. I healed up, had my tonsillectomy (sp), and healed fine after that. I noticed nothing wrong with my upper right buttock until about two weeks ago. I am in the process of getting a large rib/hip tattoo piece finished, and about two weeks ago I noticed a spot that looked like a small bruise a few inches from my tattoo in the spot where I was administered the Kenalog shots. I didn't put it together then. Two weeks later (This past Thursday, September 25, 2008), my tattoo artist was about to work on me and said, "You have a dent in your butt, what happened?" I had no idea it was even a dent. The "bruise" like mark now looked like a burn scar, red, and smooth and deep--dented. The red mark is still dented and the same color. It's about the size of an inch from one side to the other. However, each day since it has been dented, the dented area has expanded fairly rapidly. The dent is now not only in that red area (the injection site), but also along my hip/upper thigh. It's getting deeper and traveling outside the red area, and the red area is the same color. This discoloration just started. I heard this is called Tissue Atrophy due to a misadministered Kenalog injection. Does this dent go away or stop "spreading" by itself? How will I know if it will stop spreading; is it different for everyone? How can it be properly diagnosed as well? Can a biopsy be done to prove that this it what it is? Does anyone have any insight? Also, it's been 2 1/2 months before I saw any of these effects...why does it seem like my effects came later than others? Is that possible? Thanks.