Please pray for my daughter with bulimia

Dear Lord, please pray for my daughter, and give her the strength as she is fighting this horrible disease called bulimia. She is getting treatment as I write this, but she is getting weaker as this disease is controlling her. Please give her the strength to win this battle, I do not want to lose her. As a parent, it is so hard to watch my daughter get weaker and knowing this is one thing I can not control but to only encourage her to get better.