I have been hypnotized and I was fearful to do it. It took a while for me to try it. A friend of mine is a trained experienced hypnotist, so I trusted her, but was still apprehensive.
I had an unrational fear of flying which got worse all the time, and that's why I tried it. I would get physically sick about 3 weeks before the trip and off food. I had a bloody mary the first thing on the flight and tried not to move while in the air, afraid all the time. I am not a drinker at all so having a drink was strange to me. It got so bad that I couldn't enjoy my trips because I worried about flying back home. THAT was when I agreed to try it.
Here is what happened: It was very difficult for her to put me under for some reason, but she did manage to do it and that session helped me alot. I won't go into details of the session, but I was aware and congnizant the whole time. It was weird to feel under and to feel able to realize where I was and what we were doing. I could have pulled myself out at any time. I talked with her during the session and heard her easily. After the hypnotism session, I did not ever have any problems flying again. I don't worry about it and can enjoy flying like anyone else. I do know that it worked for ME, but I certainly didn't want to have to do it. I would not hesitate to do it again if I had problems.
But I would only do it knowing that the hyponotist was certified, and pre checked by me before doing so.
I hope this helps.