My daughter got on some ivy Sunday - she knew when and where she was exposed. I had purchased a comercial ivy kit but it was 15 miles away. By the time we got home, she had multiple prominent blisters. We used the "ivy wash" and steroidal cream. As we were very careful not to touch the affected area directly, there was no spreading and within 15 minutes she was fine. The kits vary hugely in price ($5-$50). I purchased one of the inexpensive kits and "Ivy Block". I went back and bought two more kits, one for my truck and one for my caching bag. Two thumbs up on these products.
