wheal-and-flare reaction

wheal-and-flare reaction definition - medical

wheal-and-flare reaction

noun
The characteristic immediate reaction to an injected allergen in a skin test, in which an irregular blanched wheal appears, surrounded by an area of redness. Also called wheal-and-erythema reaction.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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