Hay Fever

Hay Fever

Allergic rhinitis, also widely known as hay fever, affects up to 10-20% of people, globally.1 It is generally caused by an allergic response to triggers such as pollen or animal fur, and it can result in symptoms such as a runny nose, itchy eyes, sneezing and nasal congestion.2-4 Quality of life can be severely affected by allergic rhinitis.2

Several medications, often in combination, can be used to treat the symptoms of allergic rhinitis. They typically include nasal corticosteroids, antihistamines, and decongestants.2,3

Back to top

Overview: What is allergic rhinitis?

Allergic rhinitis is an inflammatory condition of the nasal lining caused by an allergic reaction to airborne triggers which can differ from person to person. Common triggers include pollen, grass, pet fur and dust mites.2

It can occur during a specific season, most commonly spring, when pollen counts are high, which is termed seasonal allergic rhinitis, or throughout the year, termed perennial allergic rhinitis.3

When an allergen (trigger) enters the body, it mounts an antibody response with IgE (immunoglobulin E). People with allergies have higher levels of IgE.3 Mast cells (cells in the surface tissue), such as nasal mucosa, which are key players in inflammatory responses release a number of substances including histamine, IL-4, IL-13, TNF-α, leukotrienes and prostaglandins.5

These substances cause itching, swelling, and ‘leaking’ fluid from cells which, in turn, lead to the symptoms of allergic rhinitis.

Back to top

Causes and risk factors

There are multiple triggers of allergic rhinitis, which differ between people. Some underlying conditions may increase susceptibility to allergic rhinitis.

Common triggers

Allergic rhinitis triggers are often seasonal and include:2

  • Pollen from trees, flowers, and grasses (common in spring)
  • Dust mites
  • Pet fur (may be worse in winter when houses are closed up)
  • Perfumes, smoke, and other air pollutants

Risk factors

Allergic rhinitis is thought to be genetic and can be worsened by frequent exposure to triggers.3,6 A number of conditions can predispose people to allergic rhinitis or cause it to be more severe. These include:2

  • Other allergic conditions, such as asthma*
  • Atopic dermatitis (eczema)
  • A family history of allergy
  • Living in an area with high exposure to triggers
  • History of maternal smoking in first year of life

*Up to 80% of asthmatics also have allergies.7

Back to top

Symptoms of allergic rhinitis

The initial symptoms of allergic rhinitis may be confused with those of a common cold. Unlike colds, it is not contagious and not associated with fever, but is characterised by watery discharge from the nose, starts immediately after exposure to a trigger and resolves when the trigger is removed. The common cold starts 1-3 days after exposure to the virus and resolves within 3-7 days.2,3

 Common symptoms of allergic rhinitis include:1-4

  • Nasal congestion
  • Sneezing and runny nose
  • Cough
  • Postnasal drip
  • Itching of the nose, throat, and eyes
  • Excessive tear production
  • Sleep disturbances and difficulty waking
  • Daytime sleepiness and dysfunction

Complications may include worsening asthma, sinusitis, and otitis media.2

Back to top

Burden on quality of life

Allergic rhinitis places a large burden on quality of life: lack of sleep and constant itching and running nose can lead to irritability, work/school absences and decreased productivity. In today’s fast-paced lifestyle, this is far from ideal.2

Costs, both direct (doctor’s visits and medication) and indirect (lost workdays and productivity) of allergic rhinitis can be significant.6

When to see a doctor

You should seek medical attention if:2

  • Symptoms of allergic rhinitis are not relieved when using allergy medication
  • You have other conditions which may worsen the condition, e.g., asthma, sinusitis and/or nasal polyps
Back to top

Diagnosis of allergic rhinitis

Diagnosis of mild allergic rhinitis is usually made based on symptoms.3 More severe allergic rhinitis may require allergy testing, to establish triggers. Allergy testing is done by the skin prick test and/or blood tests.2,3

Skin prick test

During the skin prick test a small drop of each suspected allergen (trigger) is placed on the skin and then the skin is scratched with a sterile needle. If the skin becomes red and/or swells, sensitisation to that allergen is confirmed and allergy to that allergen is probable.3

The identification of triggers allows for its possible avoidance.

Allergy blood test

Several blood tests may also be performed to aid diagnosis of allergic rhinitis, such as IgE antibody testing.3

Back to top

Treatment of allergic rhinitis

Due to the multiple processes involved in allergic rhinitis, treatment with a combination of medications is often needed.2 This can have a significant financial impact.6 The most used medication classes include antihistamines, nasal, or oral corticosteroids, decongestants, and leukotriene modifiers.2


Antihistamines block histamine which can alleviate the itching, sneezing and runny nose.2 Most commonly, they are given orally, but nasal sprays and eye drops are also available, which act locally.


Corticosteroids reduce inflammation and decrease the production of substances that cause the allergic response.3 They are often the first choice for treating allergic rhinitis.2


Decongestants can help to control symptoms (such as inflammation), but not the cause of allergic rhinitis. They decrease swelling in the nose, allowing easier breathing. If used for too long (> 5 days), they can cause rebound congestion when they are stopped.3

Leukotriene modifiers

Leukotriene modifiers act on leukotrienes, which form part of the allergic response. They are generally not used as first-line treatment.3

Combination treatment

Intranasal combinations of antihistamine and corticosteroids are available, reducing the need for polypharmacy and treating allergic rhinitis using dual mechanisms with both short-acting and long-acting effects.8

  • A combination nasal spray has been developed to meet the demand for improved symptom control.
  • The first combination of an INCS and IAH in South Africa, thus eliminating the need for polypharmacy
  • Rapid onset of action, within 10 – 15 minutes
  • Provides both nasal and ocular symptom relief
  • Sustained symptom and QOL improvement from day 1
Back to top

Prevention and lifestyle changes

Complete avoidance of allergic rhinitis triggers is not always possible, but can minimise the risk and severity of the allergic rhinitis. 2

In many people, long-term treatment, prescribed by a doctor (often only during ‘allergy season’, i.e., before exposure to allergens) can minimise symptoms and the burden on quality of life.

For more information, speak to your healthcare professional!

Medical References

  1. Liu, J., Zhang, X., Zhao, Y., et al. The association between allergic rhinitis and sleep: A systematic review and meta-analysis of observational studies. PLoS ONE 15(2): e0228533. Available at: https://pubmed.ncbi.nlm.nih.gov/32053609/. Accessed 2021 July 30.
  2. Mayo Clinic. Allergic rhinitis. Updated 2020 July 6. Available at: https://www.mayoclinic.org/diseases-conditions/hay-fever/symptoms-causes/syc-20373039. Accessed: 2021 July 30.
  3. Allergic rhinitis. Updated 2021 January 29. Available at: https://www.medicinenet.com/hay_fever/article.htm#is_allergic_rhinitis_contagious. Accessed 2021 July 30.
  4. Green, R.J., Hockman, M., Friedman, R., et al. (on behalf of the South African Allergic Rhinitis Working Group (SAARWG)). Allergic Rhinitis in South Africa: 2012 Guidelines. S Afr Med J 2012;102(8). Available at: file:///C:/Users/01361002/Desktop/210731_Allergic%20rhinitis_SA%20Guideline_2012.pdf. Accessed 2021 July 31.
  5. Weller, C. (British Society for Immunology). Mast cells. Available at: https://www.immunology.org/public-information/bitesized-immunology/cells/mast-cells. Accessed 2021 July 31.
  6. Tran, N.P., Vickery, J. Blaiss, M.S. Management of Rhinitis: Allergic and Non-Allergic. Allergy Asthma Immunol Res. 2011 July;3(3):148-156. doi: 10.4168/aair.2011.3.3.148
  7. Asthma Australia. Asthma and allergies. Available at: https://asthma.org.au/about-asthma/live-with-asthma/asthma-and-allergies/. Accessed 2021 July 31.
  8. Gross GN, Berman G, Amar NJ, et al. Efficacy and safety of olopatadine-mometasone combination nasal spray for the treatment of seasonal allergic rhinitis. Ann Allergy Asthma Immunol, 2019;122:630-638.
Mental Health
Infant Health

For more health information

Click on the body area you want to know more about. Select a related health topic from the menu

Select a body area


Hypertension – Are you getting enough of these three micro-nutrients?

Making sure you get enough of the minerals magnesium, potassium and calcium


Hypertension - why regular blood pressure assessment matters

Blood pressure is measured using an inflatable arm cuff and a pressure measuring gauge.


Hypertension - Family support following your hypertension treatment plan

Family and friends can be a wonderful resource in helping you keep your blood pressure under control - and it helps them stay healthy too.


Hypertension - lifestyle tips for cardiovascular health

Small daily lifestyle changes can add up to a big positive impact on your hypertension and health overall.


Hypertension - the importance of treatment adherence

Once you’ve been diagnosed with hypertension, you will likely need to take your blood pressure medication on an ongoing basis

Content Disclaimer:
You understand and acknowledge that all users of the Dis-Chem website or app are responsible for their own medical care, treatment, and oversight. All of the content provided on the website, are for INFORMATIONAL PURPOSES ONLY and DOES NOT CONSTITUTE THE PROVIDING OF MEDICAL ADVICE and is not intended to be a substitute for independent professional medical judgment, advice, diagnosis, or treatment. The content is not intended to establish a standard of care to be followed by a user of the website. You understand and acknowledge that you should always seek the advice of your physician or other qualified health provider with any questions or concerns you may have regarding your health. You also understand and acknowledge that you should never disregard or delay seeking medical advice relating to treatment or standard of care because of information contained in or transmitted through the website. Medical information changes constantly. Therefore the information on this website or on the linked websites should not be considered current, complete or exhaustive, nor should you rely on such information to recommend a course of treatment for you or any other individual. Reliance on any information provided on this website or any linked websites is solely at your own risk.
Back to top