Hey, I'm sorry you are suffering through this...I've had the same problem at times..I once fell asleep while reading a book and when I woke up the next day it was growing mould because I had got it that damp...totally gross!!
I find, oddly, that it helps to drink lots of water (sounds wierd I know) but it seems to keep you cooler and make the sweat that does come out less odourous. It seems you are getting a lot of good deoderant advice so I won't even bother with that! Good luck with all the advice coming your way xxxx