Ha, had a friend that went into the woods with his girlfriend. Let's just say 2 days later he wasn't a happy camper down south. I second Technu it really does work.
+1. I had a terrible case of poison ivy earlier this summer. It was all over my arms and legs. Eventually, I put white vinegar on it and that helped much more than everything else. Finally, I started putting alcohol on it a couple of times per day and it was drying it out nicely.
I've found if I touch poison ivy I'm ok if I get it washed off w/in 30 minutes. After that, I'm toast.
since it will be a long weekend, i think i'm going to scruff it out and not shave for a few days. the stubbles may actually help protect a little from the sun as I don't want my face to be scarred, otherwise my new handle will be scarface and people will think i shave with disposable razors