Question:
Are we permitted to see hypnotists for fear of flying in planes?
Answer:
According to a number of poskim, if it is done for a specific need, and not just for fun, entertainment, the nit is permitted
Best wishes
Sources:
Darcei Teshuva 179-6 in the name of Bnei Tzion 1-68 Igrot Moshe Yoreh De’ah 3: 44. Minhat Yitzhak vol. 6 Siman 80,