My 15 year old sister is close friends with a girl from school who appears to have bulimia. My sis has done the right thing and brought it to the attention of the form tutor and lady in charge of the boarding house. (This girl boards at school - my sis doesn't). To me, the school doesn't seem to be doing much about it. The dinner ladies have been asked to keep an eye on her, but sis says nothing seems to have changed and other people are starting to try it too! I feel this girl needs help and it needs to be nipped in the bud with the others, but how do you do it? How do you get them to stop? Any advice I can give to dsis, who is clearly very concerned about her friend, would be gratefully received.