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Allergy skin tests are done to find out if a substance, called an allergen, may cause an allergic response. A small amount of a suspected allergen is placed on or below the skin to see if a reaction develops.
Types of skin tests include:
Allergy skin tests are done to find out what things you are allergic to.
Many medicines can affect the results of an allergy skin test. Examples include tricyclic antidepressants and antihistamines such as cetirizine (Reactine), fexofenadine (Allegra), and loratadine (Claritin).
Be sure to tell your doctor about all the medicines you take. You may need to stop taking some medicines before you have an allergy skin test.
The nurse will:
The results of a skin prick or intradermal test will be available right after the test is done.
If you have an allergic reaction from any of the skin tests, you may have some itching, tenderness, and swelling where the allergen solutions were placed on your skin.
Allergy skin tests usually take less than an hour.
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Current as of: January 21, 2019
Author: Healthwise Staff
Medical Review:Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & Rohit K. Katial, MD - Allergy and Immunology
Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.
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