I am sorry to hear about your daughter I am 14 almost 15 and for the last 2 years almost i have been in a huge relapse of RND. It was really bad and at school they were pushing me in a wheel chair since otherwise it would take me forever to get to classes. Once i was 20 minutes late to a class that was just down the hall, so I know the feeling just whatever you do don't let her give up that the worst thing that could happen. As long as she keeps moving she'll eventually get through this remind her that. Tell her to stay strong.