First wash the affected area with soap and water to remove any traces of the urushiol (especially helpful if done within the first 30 minutes of contact). Washing contact area in a heavy salt water or meat tenderizer and water mixture is helpful too.Either rub the affected skin with the “sap” from a broken stem of jewelweed or fill a pot with the herb (including stems & flowers), cover with water then bring to a boil. Simmer until it has been reduced by half. Strain, refrigerate and use topically on affected skin. Can also freeze into ice cubes or small packs and use as needed so if you have a bunch growing nearby, stock up on it when it’s in season and prepare a batch to use year round.