Thanks for the advice guys! We have an appointment with foot doc next week and in the meantime we will continue with the treatments you suggested. I kept her home another day because we got some snow here and I didn't want her on crutches in the wet mess.
She is determined to dance point, so we are going to try everything to help the ankle get stronger. But you are right Mike. Her ballet teacher already said that point just might not be something that her body can do.