I'm no expert, but I look at it sort of the same way as I do alcoholism. I'm a recovering alchoholic, and I don't think I'll be really "cured" of it, but I can keep it in remission of sorts by not drinking one day at a time, going to AA, and keeping up my daily reprieve. I am the same way with my depression. I don't think I'll ever completly be cured of it, but I can get better by continuing therapy, meds, a better diet, etc.