Lysol. Benign to the human body & skin, deadly to the oils in poison ivy & poison oak which causes the reaction to it.

I’d spray it on, rub it around and with very minimal water (as I was working in the “woods” and didn’t have a faucet at my side) would rinse it away.

Lysol works by breaking down the cell membranes of bacteria & microbes. Those cell membranes are made of biological oil precursors and the oils from the ivy & oak are destroyed by the Lysol.

You skin’s waxy cuticle protects you mainly by keeping things out, but the oils form oak & ivy over time can get through as they are of the same basic makeup so they are able to enter. The wavy cuticle is enough to spot an detrimental impacts of the lysol, so their is minimal risk if any to using it this way.

I also used if I did catch it to break down the oils still present and to dry out the affected area which allows for quicker recovery times. I think it is more effective & less messy than Tech-nu or Calmine lotion, etc.

Give it a try next time. I’m 99% certain it is effective to preventing the summer time itch.