Allergy skin test picture, Skin Prick Allergy Test pictures
Description of the test
An allergy skin test identifies which substance triggers an allergic reaction. A small amount of the substance, or allergen, is introduced to the body through the skin. If the skin reddens or swells then the test is read as positive and the person is probably allergic to that substance. The reaction is due to the release of histamine, a chemical naturally found in the body, which causes swelling, redness, and itching (also known as a wheal). This test is performed by an allergist.
Allergy skin test picture, pictures os skin allergy test.