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rashes, itching, inflammation, oozing, and, in severe cases, a burning sensation. 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 ivy. What it looks like: Poison ivy is a type of allergic contact dermatitis that is caused by the oil (urushiol oil) in the poison ivy plant, explains Karan Lal, D.O., M.S., F.A.A.D ...
Eastern poison ivy has a ropelike, hairy vine with three green leaves attached to a single stem. Western poison ivy grows as a shrub with three leaves attached to a single stem. Poison oak also ...
Perioral Dermatitis. Perioral dermatitis is a red rash that appears around your mouth and nose and causes red, inflamed, swollen bumps on the lower half of your face, says Dr. Parikh. The rash is ...
Poison ivy, aka ‘3 leaves’, 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: Toxicodendron radicans , Toxicodendron rydbergii , and Toxicodendron orientale .
Toxicodendron radicans, commonly known as eastern poison ivy[ 3] or poison ivy, is an allergenic flowering plant that occurs in Asia and eastern North America. The species is well known for causing urushiol-induced contact dermatitis, an itchy, irritating, and sometimes painful rash, in most people who touch it.
Urushiol in its pure form is a pale-yellow liquid with a density of about 0.968 g/mL and a boiling point of 200 °C (392 °F). It is soluble in diethyl ether, acetone, ethanol, carbon tetrachloride, and benzene. [ 12][ 13] Urushiol is a mixture of several closely related organic compounds. Each consists of a catechol substituted in the 3 ...
Poison ivy, sumac and oak leaves contain an oil called urushiol. When it comes in contact with your skin, urushiol can cause a blistering, itchy rash.
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