Betty
Your daughter needs to be under a doctor's care immediately; an eating disorder can be life-threatening. You will be saving her life to FORCE her to go to a doctor's office. Also, EDUCATE YOURSELVES. Put the technical name of her illness into a www-search or an HLU search and read up on the illnesses as much as possible. Those web sites should also tell you where the support groups are, both for her and for YOU. (I wonder if parents can be "enablers" for eating disorders.)