My DD was put on oral prednisone a couple of days ago for 5 days. She has been on it quite a few times before (she has a large asthma component to her CF and a pretty reactive airway). This time she has flushed red cheeks. I was reading online and see that this can be a side effect, but I'm curious why it has never happened before. This isn't something I should call the doctor on call about is it (being the weekend)? By the time monday rolls around she will be done with it anyway.