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An allergy test or food challenge may be performed at an allergy clinic to determine the exact allergens. Since a tree nut allergy can be life-threatening, people who suspect they are having allergic reactions to any kind of tree nut should be tested by an allergist immediately. [14] Tree nut allergies can be genetic and passed down. [15]
A patch test (contact delayed hypersensitivity allergy test) [17] is a commonly used examination to determine the exact cause of an allergic contact dermatitis. According to the American Academy of Allergy, Asthma, and Immunology, "patch testing is the gold standard for contact allergen identification". [2]
Treatment consists of two phases: stopping the urushiol contact that is causing the reaction (this must be done within minutes) [13] and, later, reducing the pain and itching. [4] Primary treatment involves washing exposed skin thoroughly with soap, cool water, and friction as soon as possible after exposure is discovered. [4]
Members of this family produce cashew and pistachio nuts, and mango and marula fruits. [5] Some members [which?] produce a viscous or adhesive fluid which turns black and is used as a varnish or for tanning and even as a mordant for red dyes. [5] The sap of Toxicodendron vernicifluum is used to make lacquer for lacquerware and similar products.
Anacardic acids are phenolic lipids, chemical compounds found in the shell of the cashew nut (Anacardium occidentale). An acid form of urushiol, they also cause an allergic skin rash on contact, [1] known as urushiol-induced contact dermatitis. Anacardic acid is a yellow liquid.
Urushiol / ʊ ˈ r uː ʃ i. ɒ l / is an oily mixture of organic compounds with allergenic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Chinese lacquer tree, poison ivy, poison sumac), Comocladia spp. (maidenplums), Metopium spp.
The mainstay of treatment for food allergy is total avoidance of the foods identified as allergens. An allergen can enter the body by consuming a portion of food containing the allergen, and can also be ingested by touching any surfaces that may have come into contact with the allergen, then touching the eyes or nose.
Mango, strawberries, banana, [18] avocado, and kiwi are common problems. [19] Severe allergies to tomatoes have also been reported. [20] [21] Stone fruits are highly cross-reactive with one another, as are the rosaceae fruits [22] [10] Reaction to hot peppers, a kind of botanical berry, is another specific type of fruit allergy. Garlic