Yes. It was about flying. It wasn't just the usual 'what if we crash?' but I started shaking, once even crying, and I couldn't do anything, I was certain we would crash or something, etc; I thought that although it was the worst fear I've ever had, I was being stupid, that it was my own fault etc; and when I mentioned it to the GP in an appointment about something else, he took it seriously, reccommended a person etc;
The therapy isn't actually too exposing. You've got your eyes closed most of the time, after the therapist explains about what's happening etc;, and it starts with going through some techniques to make you 'hypnotised'. Being hypnotised isn't like magicians/films, you're awake, with your own thoughts, and most of the time I was thinking 'oh God this is stupid!', but it works subconciously so you are being affected by it, but while you are wide awake.
It's not a quick fix, never can be, but starts you off to facing your problems. I took it about a month before the flight, and had another session two days before the actual flight. The hypnotherapist also reccommended breathing techniques etc; although if you are quite jumpy, breathing techniques won't work because you're being startled. A good one will reccommend other ideas though, hopefully.
Of course, I had a very nice hypnotherapist. It took place in his home, and DH was there, although he didn't talk, and the chair was one of those ones which tilt (very comfy) and make you relax. Ask your GP about reccommending one (he doesn' have to know the reason, although it would help) and most good ones will have hypnotherapy records (qualifications, awards etc;) in the room it will take place in, which made me feel more at ease.
Most of my experience is due to my fear, which like I said made me shake, cry, or freeze, and feel like I'm going to vomit etc; and not due to being jumpy and easily startled, and I'm sure hypnotherapists have techniques for each scenario, and they also techniques which are unique to them, so your experience could be very different.
Good luck!