Glycopyrrolate. Its an oral pill, an anti cholinergic. You take it for the side effect of dryness. It has changed my life. 4mg in the morning keeps me dry all day, and I live in 100+ degree weather and work outside. My body takes it well thankfully. Be aware that the side effects may be annoying to intolerable. I have dry mouth, dry eyes, and a little photosensitivity, but I will take those over HH any day. Some people suffer worse side effects. You can get it through a prescription, or you can order it to be shipped to your home from pharmacy.ca. It is expensive with shipping, so if you can get a doctor to write a prescription, all the better. The brand name is robinul. If you get a prescrip, I'd go to a dermatologist or someone well versed in the type of condition HH is. My general doctor was a little hesitant to prescribe it, back when I had insurance, until he researched HH and the history of using glyco to treat it. I'd HIGHLY recommend ordering the 2mg x30 trial from pharmacy.ca and start out with 4mg in the morning. Don't eat 1 hour before or 2 hours after the pills. You may also take them by setting your alarm for very early in the morning. This works well for me. The site has pharmacists that email you.