Surf these sites: Botanical.com Poison Ivy Information -- General information about the Poison Ivy plant. Medical Self-Care - Poison Ivy (Oak, Sumac) -- Poison ivy, poison oak and poison sumac are the most common plants that cause a skin rash, learn how to treat it. Poison Ivy, Oak, and Sumac Information Center -- Dedicated to those individuals that have ever experienced and suffered through the itching and painful rashes associated with contact of an oil called urushiol (you-ROO-shee-ol) from these plants.
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