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Hay Fever

What is causing my hay fever/allergy symptoms?

When you have allergic rhinitis (hay fever), your body responds to airborne particles that it interprets as harmful. These could be plant or grass pollens, pet dander, dust mite or mould spores.

As a result, your body produces histamines to combat the allergen/s.  These histamines cause increased mucus and inflammation of the nasal and sinus passages and can lead to annoying allergy symptoms such as a runny, itchy or blocked nose, sneezing, itchy/watery eyes, a tickly/irritated throat or cough and increased nasal or sinus congestion.  Symptoms like these can also reduce the quality of your sleep, making you feel fatigued and generally unable to concentrate.

Use the SymptomChecker to find appropriate products.


woman walking surrounded by pollen

So what can I do about my hay fever/allergy symptoms?

One of the most effective and simplest strategies for hay fever symptoms is to use a preservative-free saline irrigation (a therapy that is also recommended by Asthma Australia). These saline sprays or washes work by washing allergens out of the nasal passages which help to reduce the allergic response.

Find out more about Saline nasal sprays: health benefits and when to use them


Click on each of the symptoms for our product suggestions.
Sinus Congestion Itchy Eyes/Nose Blocked Nose Itchy/Runny Nose/Sneezing Tickly Irritated Throat

Sinus Congestion


Itchy Eyes/Nose


Itchy Runny Nose/Sneezing


Tickly Irritated Throat


And if my symptoms are more severe?

If your symptoms are more severe, there are medicated options that can be used along with saline sprays or washes. To reduce inflammation further your health professional may recommend an antihistamine and/or corticosteroid nasal spray. To be effective, corticosteroid nasal sprays should be used on a daily basis throughout the entire period when exposure to troublesome allergens is most likely. Ideally they should be started a few weeks before the allergen season begins. Antihistamine nasal sprays can be used as and when symptoms arise and can start to take effect in 15-20 minutes. If you have a severely blocked nose, your health professional may recommend a nasal decongestant first, however always remember these should not be used for longer than 3 consecutive days.

Woman with severe symptoms

Flo proudly supports the work of Asthma Australia. The Asthma Australia logo in this patient information does not in any way constitute an endorsement by Asthma Australia of ENT Technologies or Flo products.

Flo also proudly supports the work of Asthma WA.

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