Hello :)
I have always considered getting hypnotherapy as it is meant to help with eating disorders but I never really got round to it.
it helped him give up smoking
Yes I've heard it's meant to be good for giving up smoking too.
It's defiantly worth researching. You are likely to find mixed responses but then again that's the same with any treatment, even conventional stuff.
Let me know if you do get a treatment and how it goes!
Sophie :)