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Definition of Contact dermatitis, allergic

Contact dermatitis, allergic: Also called allergic contact eczema, this is a red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy or certain preservatives in creams and lotions.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=9598
Last Editorial Review: 6/14/2012

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