hypnosis to stop smoking

nobody has used hypnosis to quit smoking? Did it work? If so, is it immediate?
and how long is a smoker? well i dont suffer from depression and would not feel comfortable with something to play with my brain as well because one of the side effects quitting … if Im going to "use" something, it would be patches or gums.
I personally have not tried, but my ex-stepmother is not entitled. It had been a smoker for 30 years before hypnosis. He stopped a week after that, completely, before starting again. So I say do not waste your money.
Paul McKenna on The Ellen Degeneres Show