Hi, I have suffered from chronic urticaria for the last 30 years, & have been on prednisone. I have every test & drug known to man, & have been seen at Stanford. As I m sure you ve guessed by now, it s an autoimmune thing. However, I also have a ton of lower back issues, all the usual suspects . I was doing some research, & just saw that the T9 vertebrae being out I guess you could call it, can cause hives. Do you think this is possible, & could be what s been causing my hives all these years?