in case you get too close to that skin poisonous plant, poison oak, "leaflets of 3 let it be" !! "Tecnu" is amazing, as a white liquid soap , to add to your shampoo soap,,,or dog shampoo a teaspoon maybe,,,or your clothes laundry soap. So stock up, because it is everywhere on the coast,,,and in the Sierra foothills !!
you have been unofficially warned.
Happy hiking !!