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Home > Fitness & Health > Health Library > Allergen
Allergens, also called antigens, are substances that can trigger an allergic reaction. Having allergies means that the body reacts to allergens as a harmful foreign substance.
Allergens may be:
Allergy symptoms may be controlled by avoiding exposure to allergens. Medicines and immunotherapy may help relieve symptoms or reduce the body's reactions to certain allergens.
Current as of: October 24, 2023
Author: Healthwise Staff
Clinical Review BoardAll Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
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