Poison Ivy - BOOOOOO!!!!!
My brother is so alergic he swells up until you can't recognize him - sounds like you aren't much better with swollen lips - definitely go for the steroid shot!
Funny, I've never gotten it - seems I may be immune which is really weird to be given that my immune system has gone so nuts over other stuff.
Feel better soon and hire some one to remove that stuff for you. I understand that many South Americans (Maybe Brazil?) are immune and can rub the stuff head to toe with no reaction.