Has anyone had the botox injections in their underarms to stop excessive sweating?

I agree with Sheri. I use a medicated night time deodorant and wash it off in the morning. Go to your dr's and they'll sort you out a prescription for the best one for you. Drichlor isn't the strongest you can get as you can buy it over the counter. What you do need to be wary of, though, is excessive use of the deodorant. When I first tried I applied it like a deodorant (3 or 4 good swipes back and forth under my armpit) this caused amazing itching and I could hardly sleep - then I realised that once down or up the armpit was sufficient and now I don't get any pain but it still works :)