***So I'm 18 years old and I live in Seattle, Washington. I've been living with of the hands and feet for my entire life and it has been horrible. Two years ago, I started using Drysol and those other aluminum chloride things. They barely worked.
About six months ago, I went to a dermatologist with my mom and she gave me a brochure for Drionic. It has completely changed my life.
While I don't have HH in my armpits, there is a Drionic device for your armpits too.
I ordered my device online from drionic.com. It was about $140...more with tax and shipping, but it was well worth it!
I only use it for my hands, because they need it most and batteries are $7 a pair. This will change your life, I promise you. I first used it for a total of 7 hours (in half hour treatments) and i was dry for 5 weeks! I started doing it once weekly after another set of treatments to stay dry. So a pair of batteries usually lasts about two months or so.
I hope I have helped!!!