I just used bleach on my posion oak a day ago and it worked like a charm. I used it at full strength. Oh sure, it stings a bit at first but I no longer have the urge to itch and the infected areas are drying up. I had a really bad case too. I'm a firm believer in this remedy. As long as you don't a an alergic reaction to the bleach - it's perfectly harmless.
