How can I help my 15 year old son deal with extra breast tissue issues?

My son has had to deal with bullying over a enlarged nipple and breast, which his doctor has finally agreed to do a breast reduction surgery on. He works out 3 days a week and is not overweight. Previous posts I've researched have ridiculous amounts of insensitive comments, as a mother I have had to deal with the guilt of feeding him non organic foods that had added hormones, and fast food that has all kinds of crap, so any positive advice would be greatly appreciated.