Allergies

An allergy is a reaction the body has to a particular food or substance. Allergies are very common. They're thought to affect more than 1 in 4 people in the UK at some point in their lives.

They're particularly common in children. Some allergies go away as a child gets older, although many are lifelong.

Adults can develop allergies to things they were not previously allergic to.

Having an allergy can be a nuisance and affect your everyday activities, but most allergic reactions are mild and can be largely kept under control.

Severe reactions can occasionally occur, but these are uncommon.

Overview

Symptoms

Diagnosis

Treatment

Prevention