How to treat hyperhidrosis?

I sweat everywhere. My back, armpits, forehead, scalp, legs, you name it. How can I resolve this issue? Please don't tell me to pick up a special antiperspirant. I'm more concerned with the excessive sweating in other areas besides the armpits. At this point, armpits are the least of my worries. I can't even walk to class without sweating somewhere. I've tried pretty much everything out there (Certain Dri, Maxim, etc). I also won't consider surgery or botox injections. Other than that, all suggestions are welcome! Thanks a lot.