I have been on 10 mgs of prednisone for 3 years, along with azath...

I have been on 10 mgs of prednisone for 3 years, along with azathioprine wh/ tricks my body into thinking it has more prednisone in it. Since the time I have taken it, I've developed the moon face, flushed cheeks, and I've gained 21#'s although my appetite has decreased and I'm exercising more. Is there anything you could recommend that could help me loose the weight or am I stuck? I am prednisone dependent due to my autoimmune liver disease. Thanks for any advice in advance. 45 going on 65 fast.