I was on those too and they did constipate me a little =/ You could try eating more fiber, and also hot tea helps move things along. I also heard that squatting on the toilet seat (feet on the seat) helps move things along. Good luck!
good news mate! whats happening is the steriods are getting rid of the inflamation and calming everything down? it happend to me when i started taking them it was a relief !! i know wot u mean about messing yourself it happend to me twice tha other day not nice!!!! good luck xx