Hi Jenny,
I believe botox does work for hyperhydrosis, I have heard a lot about it. But when i asked my dermatologist she laughed in my face, she said it didn’t work. It’s all about the NHS saving money, but if you can afford to go private, do so. The medical profession don’t appreciate how debilitating facial and head sweating is. I also asked my doctor about iontophoresis and he said he had never heard of it. Funny huh? I have an appointment with another dermatologist and will ask if they own such a machine. Will keep you posted.
Smile and good luck,
Gill