after the fact, bleach or alcohol seems to work to dry up the nasty goo that oozes out after you itch yourself raw. burns, but it's better than the itch. A really hot shower will numb the itch for a bit, but that won't work well if you're sunburned AND have a poison ivy rash. I got some prescription once that really knocked the rash down for a day. Don't remember what it was called. I also use plain old hydra-cortisone cream. I never really tried any of the poison ivy specific products but I might check out that tecnu stuff. I swear I get poison ivy just by looking at it. I'm covered it in right now actually and I'm miserable.