The only thing that works (if you get it bad) is Prednizone. It is a dose pack perscribed by your doctor. The itch goes away in 1 night and the rash is gone in about two. The stuff is great. My family doctor is familiar with my condition to posion ivyand he has perscribed three dose packs for me to keep on hand. I always have them.

It also works great if you have back problems. Nothing worse than getting out in the wilderness and have your back go out.

keep in mind that prednizone is a steroid so don't take them like candy!