HH is genetical and some sort of overdrive in the sympathetic nervous system. It has nothing to do with nutrition, vitamins or psycotics.
This is the correct answer.
Well, if you google 'hyperhydrosis nutrition' or 'hyperhydrosis herbs' you get quite some websites.. Have you checked them out and tried any of the suggestions? (Of course still using common sense and possibly even discussing with your doctor and/or pharmacist.) If I had it, I'd research everything before saying something like that and giving up..