Definition Poison ivy , oak, or sumac poisoning is an allergic reaction that results from touching the sap of these plants. The sap may be on the plant, in the ashes of burned plants, on an animal, or on other objects that came in contact with the plant, such as clothing, garden tools, and sports equipment. Small amounts of sap can remain under a person's fingernails for several days unless it is deliberately removed with very good cleaning. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222. Alternative Names Poison oak; Poison sumac; Sumac - poisonous; Oak - poisonous; Ivy - poisonous Poisonous Ingredient One poisonous ingredient is the chemical urushiol. Where Found Bruised roots, stems, flowers, leaves, fruit Pollen of poison ivy, poison oak, and poison sumac Note: This list may not be all-inclusive.
Prevention Wear long sleeves, long pants, and socks when walking in areas where these plants may grow.
Skin products such as Ivy Block lotion can be applied beforehand to reduce the risk of a rash. Other steps include: Learn to identify poison ivy, oak, and sumac. Teach your children to identify them as soon as they are able.
Remove these plants if they grow near your home (but never burn them).
Be aware of resins carried by pets.
Wash as soon as possible after a suspected exposure. References Anderson BE, Marks JG Jr. Plant-induced dermatitis. In: Auerbach PS, ed. Wilderness Medicine . 5th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 57. Cydulka RK, Garber B. Dermatologic presentations. In: Marx JA, ed. Rosens Emergency Medicine: Concepts and Clinical Practice . 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 118. Habif TP. Contact dermatitis and patch testing. In: Habif TP, ed. Clinical Dermatology . 5th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 4.
Definition Information Drying agents such as calamine lotion may help relieve the itchiness caused by poison ivy or rashes . Your doctor may prescribe strong steroids for extra relief.
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