AllergiesOverview

overview

An allergy is a reaction your body has to a particular food or substance. Allergies are particularly common in children, but adults can get them too.

symptoms

Allergy symptoms include sneezing, wheezing and itchy eyes. A life-threatening allergic reaction can also cause swelling and breathing difficulties.

treatments_overview

If you have an allergy, try to avoid the thing you're allergic to if you can. Medicines like antihistamines can help ease symptoms if you need them.

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causes

Allergies are caused by your immune system mistaking a harmless substance for something harmful. Common triggers include pollen, food and animals.

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