The other day a young woman came in to my office to quit smoking. She told me a story that I've heard a few times over the last couple of years. She had been to another hypnotist in the area for this issue and was unsuccessful. She was clearly committed to the hypnosis process, as she felt the reason for her lack of success going into trance was perhaps her own attitude or mood at the time (this past October). This is a different scenario than the person who thinks hypnosis is a "scam" or "doesn't work". What she described to me was an all too common occurrence where the operator had not established trust and rapport with her, and simply tried to put her in trance and then give direct suggestions. This is, frankly, an outdated and often ineffective approach, best left behind in the 1950's when it was common.
Hypnosis is not like getting a flu shot. It can and will vary with the operator, and should be tailored to the individual seeking help. Spend some time speaking with your potential hypnotist and get a feel for them and how they communicate. Ask questions. Gauge their professionalism. If it doesn't feel comfortable like you will be successful, find someone else.
After discussing her issues with smoking and her nervousness about leaving the habit behind, she was able to achieve a nice comfortable trance and responded to all of the suggestions she was given. She has a reinforcement recording to listen to before sleep and should be fine - we'll see in a few days with a follow up call.