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Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis or Rhus dermatitis) is a type of allergic contact dermatitis caused by the oil urushiol found in various plants, most notably sumac family species of the genus Toxicodendron: poison ivy, poison oak, poison sumac, and the Chinese lacquer tree. [1]
How Long Does Poison Ivy Stay On Clothes, Shoes, Gear, Etc.? It varies. "The oil from poison ivy can stay on close for days, weeks or months," says Dr. Benedict Ifedi, MD , a primary care doctor ...
Poison ivy is a type of allergenic plant in the genus Toxicodendron native to Asia and North America. Formerly considered a single species, Toxicodendron radicans , poison ivies are now generally treated as a complex of three separate species: T. radicans , T. rydbergii , and T. orientale .
According to Brian Kim, MD, co-director at the Center for the Study of Itch at Washington University School of Medicine in St. Louis, one of the most effective treatments for poison ivy are ...
Urushiol is an oleoresin contained within the sap of poison ivy and related plants, and after injury to the plant, or late in the fall, the sap leaks to the surface of the plant, where under certain temperature and humidity conditions the urushiol becomes a blackish lacquer after being in contact with oxygen.
An antihistamine may help relieve itching. (NOTE: Drowsiness may occur.) In severe cases or if the rash is on the face or genitals, seek professional medical attention.
Antipruritics, abirritants, [1] or anti-itch drugs, are medications that inhibit itching (Latin: pruritus).Itching is often associated with sunburns, allergic reactions, eczema, psoriasis, chickenpox, fungal infections, insect bites and stings like those from mosquitoes, fleas, mites, and contact dermatitis and urticaria caused by plants such as poison ivy (urushiol-induced contact dermatitis ...
Contact dermatitis is of two types: allergic (resulting from a delayed reaction to an allergen, such as poison ivy, nickel, or Balsam of Peru), [43] and irritant (resulting from direct reaction to a detergent, such as sodium lauryl sulfate, for example). Some substances act both as allergen and irritants (wet cement, for example).