
You get allergies when your immune system responds to substances such as pollen, pet dander, or certain foods. Your antibodies identify these allergens as harmful, even though they are not....
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Medically Reviewed by Jennifer Robinson, MD on November 16, 2024. Written by WebMD Editorial Contributors - November 16, 2024

Medically Reviewed by Shruthi N, MD and Renee A. Alli, FAAP, MD on March 20, 2025. Written by Rachel Reiff Ellis - March 20, 2025




