Introduction

The medical term for hayfever is ‘seasonal allergic rhinitis’. It is a common allergic condition that varies in prevalence depending on the time of year, and develops when the body’s immune system reacts to pollen as if it were something harmful.

Produced by plants, including grass, trees and flowering plants, pollen is harmless to most people, but for those with hayfever, contact with pollen causes the body to release a type of antibody to attack the allergen. This leads to the immune system then releasing chemicals, including histamine, which cause the symptoms of hayfever.

The symptoms and the severity of hayfever can vary widely from person to person, and also depends on the type of pollen a person is allergic to.

Common symptoms include:

• Sneezing
• A runny nose
• Nasal congestion
• Coughing
• Itchy throat, mouth, nose and ears
• Itchy, red or watery eyes.