can you be more specific - what's been happening? how long have you been on pred and how much are you taking at the moment? Are you taking any other medications?
Normally when I have been given oral pred in the past its an 8 week course starting at 40mg and then reducing the dose by 5mg a week until the course is finished. Normally you would also be on another medication to help keep you in remission as you are coming off the pred.