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Allergies health centre

Allergy overview

Common causes of allergy symptoms include food allergies, such as peanut allergy, and seasonal allergies resulting from grass, weed, tree pollen or various moulds. Pet allergies can also cause miserable symptoms such as itchy eyes, sneezing, nasal congestion and wheezing, while allergic skin conditions can cause a rash and itchy skin.

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Are tree nut allergies diagnosed too often?

Often, people who are allergic to a specific tree nut are told to avoid all other tree nuts but a US study suggests this may be unnecessary.

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Allergy basics

What are allergies?

Having an allergy means having a bad reaction to something in the air or something you eat or come into contact with.



These triggers are called allergens, and include pollen, mould and dust in the air, as well as foods such as nuts.



Allergies are common, according to Allergy UK, one in four people in the UK suffers from an allergy at some point in their lives.

No one knows why some people develop allergies, but they may be inherited. Allergies may flare up and subside throughout your life.

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