Suggest Treatment For Severe Hair Fall

Sir, my daughters hairs falling too much day by day. She is 17 years of old. She never takes foods rightly i.e. she cannot taking vegetable with food. She avoid to take it. Some of very essential fruit is also she cant take to eat. She never take food for full amount which she would take, She take little amount of food. Please tell me what can I do for her to stop the hair falling and take food regularly.<>A Arul Dass