Allergies in general—whether it be to food, pets or pollen—occur when the body's immune system "sees a substance as harmful and overreacts to it," according to the asthma and allergy foundation of america.
Source: Medical Xpress
Allergies in general—whether it be to food, pets or pollen—occur when the body's immune system "sees a substance as harmful and overreacts to it," according to the asthma and allergy foundation of america.
Source: Medical Xpress