Hi Sequence, I am so sorry to read that. I was hoping so much it would work.
I have been trying something new for myself as well. I am using the odaban spray that is actually meant for armpits, but I spray it on my hands before I go to bed. The first time I used it I was not satisfied with the results because I was still sweating a bit on my hands and it felt uncomfortable. But the second time I used it I was happy because usually when I start sweating it starts with just a little bit of sweat on my hands, and somehow that triggers me to start sweating like crazy. But somehow when I use this, it makes me unable to sweat a little, so I won't be triggered to start sweating like crazy. Sadly it doesn't help all the time, and I get chapped hands from this. But I'm so happy when it does work.
Crazy as it is, I didn't spray this under my arms, but when my hands were dry, I also noticed dry armpits.