Allergies can arise when your immune system reacts to a food or substance that ordinarily causes no reaction in most peo

When your immune system reacts to a food or substance that typically doesn't trigger a reaction in most people, such

An allergy is where your body reacts to something that's normally harmless like pollen, dust or animal fur. The symp

Allergies occur when your immune system reacts to a foreign substance such as pollen, bee venom or pet dander or a