my son was prescribed prednisone for poison ivy.. He finished his prescription on Thursday.  Friday morning , woke with rash on his back. is this normal and will it go away on its own? I might also mention that he was treated for strep tshroat a little over a month ago.  (hes 18 years old, about 510, 130 lbs)
HI Thanks for posting your query.  Is the rash on back similar to that of poison Ivy. It might be just a delayed manifestation of some residual Poison Ivy effect. This can happen if the duration of prednisone treatment is short. In that case few more days of prednisone is required.  It would be better if you can post the picture of the rash so that I can see it and advise you better.