Based on the subject matter, this might seem like the most interesting page on this website. Unfortunately, it is a fairly superfluous page that I only decided to add because I am making pages about all of my experiences with various hyperhidrosis treatments. Irrespective of how serious I was with each approach. I tried one hypnosis session in October 2005 to help with my feet sweating. It is hard to remember a lot of what happened during this treatment five years later as I am writing this post. At the time, I was skeptical about the efficacy of hypnosis to treat almost anything permanently. I did read a 2-person study from 1990 that found that hynotherapy can reduce excessive sweating in some, but I remain skeptical.
The reason I tried hypnotherapy is because I met a very enthusiastic, sincere and impressive hypnotist in 2005 who convinced me to give it a shot. In spite of having undergone recent cancer treatment, she was going to grad school and had also become an expert at Reiki, massage and other alternative treatments. She convinced me that it was worth a try and even offered me free treatment. She told me that a large portion of her clients were there to get help in order to stop smoking or to lose weight, and most had significant success.
Prior to my one session with this hypnotist, I had to fill out and send her a relatively detailed form in which I was asked about what I expected to gain from hypnosis, what I thought about hypnosis and so on. I had one treatment that lasted for one hour or maybe a little longer. A large part of this hour entailed relaxation techniques, including me listening to soothing music while the hypnotist said positive things to me in a slow voice. A very small part of the hour entailed the hypnotist swinging a pendulum in front of me, which is typical of hypnosis as seen on tv.
At the end of the treatment, I definitely felt relaxed (although I was not stressed in any way prior to the treatment), and my feet were dry, but they tended to be dry for half my waking hours too. So who knows if this dryness was going to be there irrespective of the hypnosis therapy. More relevantly, over the next few days, I did not notice any change in the amount and frequency of my feet sweating. I realized that I had probably been crazy to try this alternative treatment to cure hyperhidrosis, though perhaps a one and done attempt is not appropriate to reach any strong conclusion.
I do believe in the potential of alternative treatments (especially meditation) to cure or ameliorate hyperhidrosis as well as many other medical problems. You can find links to some extraordinary inhuman feats on the hyperhidrosis treatments page on this site that are made possible with Tummo meditation. I have even known a person in real life who could eat no food at all for 60 days in a row, and she partially credited meditation and breathing techniques with helping her achieve this feat. However, I seriously doubt that hypnosis can permanently stop your hand or feet or other localized excessive sweating problems irrespective of how hard you try and how great your hypnotist is. The main problem is that palmar and plantar hyperhidrosis are caused by the thoracic and lumbar sympathetic nerves respectively, and their effect is involuntary rather than voluntary for the most part. Hypnosis can probably be far more effective for voluntary choices -- e.g, eating too much or smoking.