Please, I am sorry your daughter is still flaring. As a mother of a child with UC, I know how hard it is not to be able to make it all better. My daughter started 6-mp recently. She was in a flare, the prednisone wasn't working and the doctor was getting concerned. He talked about taking remicade in addition while the 6-mp needed the few months to kick in. We have held off on remicade and whether it was the prednisone that finally began working or something else, she started to see a positive change almost as soon as she started the 6-mp, lowered her asacol, and stopped the enemas (the asacol and enemas had worked great for many months). My daughter hasn't seen any more hairloss than normal although she has very thick hair so it may be less noticeable. Also she was on steroids for several months.
I hope your daughter is feeling well soon.