Bubba just came home with a nasty case of poison oak. Turns out we parked next to some on Saturday and I don't react so I didn't even notice. Both arms and legs are affected. He says he nauseated from the itching. Anybody have recommendations?

He just took an antihistamine and is going to wash with some 2% salicylic acid acne wash. The acne wash is years old. Do you think it has lost it's "umph?"

What else? He normally just gets a very small patch that goes away in a few days. This time, it looks really nasty.