06/18/2026
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After taking your history, your allergist may order skin tests and/or blood tests, which indicates whether food-specific immunoglobulin E (IgE) antibodies are present in your body:
• With a skin-prick test, a liquid containing a tiny amount of the food allergen is placed on the skin of your arm or back. Your skin is pricked with a small, sterile probe, allowing the liquid to seep under the skin. The test, which isn’t painful but can be uncomfortable, is considered positive if a wheal (resembling the bump from a mosquito bite) develops.
• Blood tests, which are a bit less exact than skin tests, measure the amount of IgE antibody to the specific food(s) being tested. Results are typically available in about a week and are reported as a numerical value.
Your board-certified allergist will use the results of these tests in making a diagnosis:
• A positive result does not necessarily indicate that there is an allergy, though a negative result is useful in ruling one out.
• Skin tests alone are not considered enough to diagnose a food allergy.
Visit to learn more: https://www.foodallergyawareness.org/accurately-diagnosing-and-managing-food-allergy/allergy-diagnosis/how-is-an-accurate-diagnosis-made/