ohioan

Hello everyone,
I contacted a pain clinic here where I live to ask about courses of treatment to control the pain of TMJD. I was told they do this with injections. Not cortisone but some kind of a steroid anisthetic, is this the same kind that Ive been reading about that can rot your jaw joints? I've already had the cortisone and it didnt seem to help and Im desperate to get some relief...any info would be appreciated. Thanks.
ohioan