one note when you get into poison sumac you have less time to get it off your skin than poison ivy !!! also white vinegar will also cut and dry out the rash , sarana cream helps with the itch!!! Tecanu has extra grit scrubbers in it but I have used lava, gojo, dawn, ivarest foam !!! the vinegar does burn try witchhazel first then vinegar if you cant handle the burn!!! sitn at home with bad case of sumac!!!alcohol works if you can stand it !!!