My first reaction would be, "Is there research to support this?" It looks like there is quite a bit of research that supports the effectiveness of hypnosis for other compulsions, so it isn't so far fetched. I found this news story about it: http://abcnews.go.co...pnosis-11743607
I wonder, if this is something you'd really like to try (even if it's just in the interim while you wait for a real surgery date), whether you would be able to find a hypnotist-in-training who would be willing to provide sessions for a minimal cost or for free. It's worth making a few calls, I'd say. But I certainly wouldn't pay the big bucks for it given that a good number of people aren't all that "hypnotizable."
Good luck.