This image displays a rash with a linear distribution typical of poison ivy. This image displays the line-like configuration of the inflamed skin lesions typical of poison ivy. This image displays allergic contact dermatitis due to exposure to poison ivy. The linear streaks seen near the third finger are characteristic of allergic contact dermatitis from a plant - in this case poison ivy. The irregular bumps of early poison ivy dermatitis may resemble acne when on the face. This image displays the poison ivy allergen on the face. Poison ivy often causes facial swelling and "weepy" skin lesions. This image displays the grouping of three leaves with irregular edges typical of poison ivy. This image displays the grouping of three leaves with irregular edges typical of poison ivy. This image displays the poison oak plant, which, like poison ivy, has 3 leaves. Unlike poison ivy, however, the poison oak plant typically looks more like a shrub and has leaves that resemble an oak tree's leaves. Poison sumac has between 7 and 13 leaves on each branch of the plant. Poison sumac can be differentiated from nonpoisonous types of sumac by the location of the fruit on the plant, with the fruit of the poisonous plant growing between the leaf and the branch, opposed to the ends of the branches.
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Poison Ivy, Oak, and Sumac  A parent's guide to condition and treatment information

Picture of Poison Ivy, Oak, and Sumac: This image displays a rash with a linear distribution typical of poison ivy. Divider line
This image displays a rash with a linear distribution typical of poison ivy.
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Self-Care Guidelines
  • After known plant exposure, use soap and warm water to wash all potentially exposed areas within 20 minutes of exposure, to remove the plant oil. Once the oil has been washed off, there is no risk of spreading the condition to other parts of the body.
  • Be sure to wash clothes, gloves, and shoes as well.
  • Try soothing oatmeal baths (Aveeno® powder) and apply calamine lotion to help relieve symptoms.
  • Wear protective clothing and apply barrier cream (Ivy Block™) 15 minutes before potential exposure, to avoid future reactions.
  • Try over-the-counter 1% hydrocortisone cream for mild outbreaks.
  • Try oral antihistamines (chlorpheniramine or diphenhydramine) to help relieve the itch, but these may cause drowsiness.
  • DO NOT USE topical anesthetics containing benzocaine or diphenhydramine, as people easily become allergic to these products.
When to Seek Medical Care
See your child's doctor or a dermatologist for evaluation if the rash does not improve with self-care measures or appears to be getting worse.
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Last Modified: 22 Dec 2008
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