Poison Ivy, Poison Oak & Poison Sumac.
A Plant Induced Rash:
plant induced rash is an allergic contact dermatitis caused by contact with oil called urushiol. Urushiol is found in the sap of the poisonous plants like poison ivy, poison oak, and poison sumac. It is a colourless or pale yellow oil that oozes from any cut or crushed part of the plant. Once exposure to air, urushiol turns brownish-black in colour. Damaged leaves look like they have spots of black enamel thus making it easier to recognize and identify the plant. Contact with urushiol can occur in three ways:
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