Indicated for use after outbreak of the rash. Unique dual-action formula. 1. Washes away poison ivy, oak & sumac (Urushiol) from the skin and 2. Relieves itching in - 30 seconds. For poison ivy, oak & sumac. This tube contains enough Zanfel to wash approximately 15 patches the size of an adult hand or face. For more information, visit www.Zanfel.com or call 1-800-401-4002. Washes away Urushiol and relieves itching in - 30 seconds.