@The Pentacle Queen,
I honestly don't know.
I am chary about it, except that it worked for you. It also worked for a friend who was frightened out of her tree travelling in airplanes at all, much less half way across the globe. She worked out of it with the hypnotism instruction.
On the other hand, when my father was between jobs in a dark hour, he met a guy in the same building his office was in for that bit of time, a guy on tv as a hypnotist. Guy came to our house. I was unhypnotisable (sp) that day, guessing my age was sixteen. A bitch even then. I think they worked together a couple of weeks, even a month, but naa.