Botox for Underarm sweating? I have bad underarm sweating. I am 5'9 about 210 pounds most of the fat being in my thighs. But I will be going to the gym soon to work on losing weight however for my underarm sweating I have tried every deodorant a lot of anti perspirants, perspirex, Drysol mild, drysol extra strength. I had an appointment with my doctor and he recommended Botox, and said I had hyperhidrosis. (Underarm area) Would you also recommend Botox? Are serious side effects common? And would Botox effect my G6PD in anyway and are allergic reactions common? Please answer!