I got into some poison ivy and am suffering the consequences. It takes a few days for the welts to appear, but they are in full bloom. While I did take precautions before starting my yardwork (gloves, long sleeve shirt, etc.), in retrospect I could have been more careful. The frustrating part is, there isn’t a whole lot you can do once the swelling appears. Ice, some anti-itch spray, try not to scratch too much, and just methodically work through this incredibly uncomfortable irritation.