What is an allergy?

What is an allergy?

An allergy is your body’s immune systems over sensitivity and over-response to a harmless foreign substance such as plant pollen, a certain food, a medicine or any one of many other substances.28 The immune system responds to this ‘foreign’ substance by triggering an allergic reaction where histamine and other chemicals are released. These produce the allergic symptoms of inflammation, which are – swelling, mucous production, itching, rash, hives, or other symptoms depending on the type and location of the allergy.28

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