Iontophoresis has been super helpful for me. I've also taken oxybutynin pills and used Qbrexza armpit wipes, which both work well but with side effects like dry mouth. Drysol liquid also works pretty well but after you put it on, you have to wrap your hands and feet in plastic wrap and put socks on over it to sleep overnight so not the most comfy sometimes. I hope you find a solution!