Tecnu Rash Relief is a unique medicated spray that provides relief from the painful itching, promotes healing, helps prevent scarring and dries the oozing of poison ivy, oak and sumac rash. Its homeopathic formula is in an easy to apply, non-aerosol spray that allows application without touching your skin. For best results cleanse the area with Tecnu Extreme® Poison Ivy Scrub or Tecnu® Outdoor Skin Cleanser to remove the rash-causing oil, urushiol (oo-roo-she-all), and keep the rash from spreading.