I used to end up at the doctor every time I got poison Ivy, becuase it was so out of hand. That is until I took the time to understand urishol, and invest in "extreme green power hand scrub" which used to be called mean green soap, but they got in a trademark dispute with a bigger company.

extreme green power hand scrub is the same ingredients as zanfel, which is like $40 for a tiny tube. I keep tub of it in my shower and any time I see it starting, or think I may have come in contact I scrub the crap out of it, and it goes away in a few days. I haven't had a major breakout in well over a decade, and I reccommend it to everyone whenever the topic of poison ivy oak sumac or cashews comes up.