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HealthInfo Waitaha Canterbury

Hay fever

Mate pāwera

Hay fever childHay fever (seasonal allergic rhinitis) is a very common condition in New Zealand. Hay fever is an allergic reaction to various pollens.

When pollen comes into contact with the wet surfaces of your body (eyes, nose, and mouth), your body recognises it as being foreign. In most people, the body ignores the pollen, but sometimes the body releases chemicals, one of which is called histamine, which causes inflammation, swelling, itching and redness of the nose and eyes.

If symptoms aren't seasonal and occur all year round even in the winter months (perennial allergic rhinitis), you may have an allergy to house dust mites or to pets (animal dander).

Symptoms of hay fever

Symptoms of hay fever include a runny or blocked nose, sneezing, itchy, red or watery eyes and an itchy throat. Most people develop hay fever in childhood, but it can also start when you're an adult.

Although not serious, hay fever can impact your quality of life by making it hard for you to sleep, concentrate at school or work or enjoy being outside.

Treating hay fever

Good preparation and treatment can help. This is particularly important if you also suffer from asthma, because hay fever symptoms can make your asthma worse (80% of people with asthma also have hay fever).

It's important to prepare early for hay fever season by starting treatment two or three weeks before the season begins.

Common treatments include:

You may need to use a combination of these treatments daily to keep your symptoms under control. Steroid injections aren't recommended for managing hay fever because the potential risks outweigh the benefits.

Desensitisation treatments, known as allergen immunotherapy are sometimes used for severe hay fever that will not clear up using other treatments.

Preventing hay fever



Dust mites

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Written by HealthInfo clinical advisers. Last reviewed July 2022.


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Page reference: 56536

Review key: HIALL-38559