During a particularly bad flare a few years ago, my doctor prescribed Prednisone along with the Enbrel I was already taking. It initially helped with the pain but, even though it was a low dose, I gained about 20 pounds and was so grumpy I couldn't stand myself. He weaned me off very slowly, much slower than I would have liked, and I've never taken it since.
I hear that some people can tolerate it better than I did and I hope you're one of those people!