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What Causes The Allergic Dermatitis (Rash) From Poison Ivy?

April 26, 2017ALLERGIC causes dermatitis ivy Poison rash

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What Causes The Allergic Dermatitis (Rash) From Poison Ivy?

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Urushiol is an active oily ingredient in the resin of the poison ivy plant. Rubbing or crushing the plant or a leaf provides sufficient contact for an allergic reaction. Very small amounts of the oil can provoke a serious reaction in susceptible people.