"i hear you can zap the sweat glands "
I suffer from an extreme case of hyperhidrosis. I used different deoderants, a topical drug called Drysol, and pills. The last resort is the surgery. I had it in May of 1999. They go in a clamp, not burn, the nerves off in between the glands. This is now done so the surgery can be reversed. After the surgery I suffered from a severe case of compensatory surgery. Even though I stopped sweating under my arms, on my arms, hands and face, I started sweating ten times worse on my back, chest, legs, and everywhere else. My hands are so dry that I had to use Neutrogena hand cream every day all day. I took medication to try to control the excessive compensatory sweating and it either didnt work or the side effects were insanely horrible.
Due to the extreme nature of first surgery, I had the surgery reversed in April of 2000. It can take the nerves over 6 months to heal...If they heal at all. I now sweat under my arms and slightly on my face again. I still sweat badly under my chest, legs, back and thighs. My hands are still excessively dry but they are getting better.
I do NOT recommend the surgery to anyone. It causes more problems than it solves.