How much does Tylenol-Codeine help Rheumatoid Arthritis?

I was feeling great and then I ran out of Tylenol-Codeine. I was taking 2 to 4 pills a day. I forget the MG but it's in a previous posting. Pretty much the day after I stopped the pain in my foot slowly started to come back. On day 4 I had to give in and I got in touch with my DR at brigham and women's hospital in Boston. I do not want to get addicted to it and haven't yet. But I'd rather take it then go back on the prednisone. So I got another prescription and have slowly started to feel better. I see my DR on Friday. Hopefully well run some more blood tests and maybe take some more xrays. Maybe one of my shoulder. It kills.