Skin prick allergy test

Allergen solution on arm and positive result

A drop of a solution containing a possible allergen is placed on the skin. Then a series of scratches or needle pricks lets the solution enter the skin. If the skin gets a red, raised itchy area (called a wheal), it usually means that the person is allergic to that allergen.

Current as of: September 25, 2023

Author: Healthwise Staff
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