What is a Histamine?
Histamines are chemicals found in your body’s cells. Histamines trigger allergic reactions, commonly sneezing or a runny nose, when the body is exposed to an allergen like dust, pollen, pet dander, smoke, mold, and certain foods. When your body’s immune system reacts to these substances, cells release histamines into the bloodstream. The histamines cause reactions throughout the body, manifesting as allergy symptoms.