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.
Share |

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.
left arrow
right arrow
Signs and Symptoms
  • Poison ivy, poison oak, and poison sumac can occur anywhere on the body where the exposure to the plants has occurred. The arms, legs, face, and neck are commonly affected. Red and brown-red sheets of skin (plaques) and blisters appear in straight lines, and they may form a crust on top.
  • In one type of reaction ("black dot variant"), the oil from the plant leaves a black dot on the skin.
  • If the face has been exposed, extreme swelling of the face (facial edema) may develop.
Prev: Who's At Risk | Self-Care Guidelines Next:
Last Modified: 22 Dec 2008
skinmatters blog, skin health and skin care advice from experts
skin condition finder, over 170 skin conditions and thousands of medical pictures
ask the doctor, skin care questions from visitors, responses from experts