Has anyone tried hypnosis for weight loss?

I think it must be expensive because they buy those full page ads, but it might be worth it if nothing else works. I'm thinking this plateau I've hit is going to last forever, and I can't accept that. I need to have the hernia repair surgery and can't think it will be good to go into another inactive time with extra pounds. I plan to talk to my doctor about hypnosis soon. She is a pretty sharp woman, and might know someone I can contact. It seems like just a few pounds, but it's so persistent, and I am obsessed with losing it.