Like the previous poster said. Crackers,toast, bananas, chicken broth, and ginger ale. Make sure she drinks plenty of water too. If she is nauseous tell her peppermints help with it.
She is refusing to eat. Has she been throwing up? It took me awhile in the beginning to get my appetite back. Just tell her to try crackers, peanut butter & vernors/ginger ale. I lived on that in the beginning cause I couldn't keep anything down. You might just need to give her more time.