Note that the hyperhidrosis treatments listed on this page are all non-surgical in nature. Surgery will essentially guarantee a resolution of excessive hand sweating, but also guarantee side effects. All of the below treatments should be attempted first prior to surgery.
For the most current and first hand accounts about hyperhidrosis treatments and treatment combinations, it is best to check out the hyperhidrosis forum on this site. From my own experiences of having tried numerous treatments over the years (including endoscopic thoracic sympathectomy), iontophoresis offers the best results.
A typical order of experimenting with treatments is presented below. Alternative treatments such as meditation and breathing exercises (to possibly control your nervous system) can be attempted too, although very few people manage to become experts at these skills due to the nature of the world and lifestyle we live in. It is interesting to note that most hyperhidrosis patients notice a cessation in sweating after drinking alcohol or right after waking up in the morning. I imagine that expert meditaters in the Himalayas or elsewhere can make their minds emulate a drunken "living in the present" state without actual alcohol consumption and therefore list meditation as a possible treatment below.
Here is an example of someone who is not a monk, but who is still able to use Tummo meditation skills to overcome extreme cold .
More on Tummo meditation . More on Biofeedback.
Alcohol, marijuana and other drugs also work at temporarily curing hyperhidrosis. This indicates some kind of connection between the central nervous system and sympathetic nervous system as well as dehydration related sweat reduction. Unfortunately, the side effects from these treatments make them impractical.