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A member asked:
When you get allergy skin test does the needle have the original substance or something else?
A doctor has provided 1 answer
Extracts of Allergen: Skin testing is a test that detects the presence of allergen-specific IgE on the surface of your skin mast cells. Allergen extracts of various aeroallergens (timothy grass, ragweed, dust mites, etc.) are pricked into the skin and if allergen-specific IgE is present on your mast cells, the cells are activated and produce localized itching, swelling, and redness.
Answered 3/7/2015
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