It is a typical spring day in Australia: A patient comes into the pharmacy because her nose has been running for days, her eyes are itching, and she wakes up in the morning with several sneezing fits. She has no fever, but feels tired and irritable because sleep suffers. Every year at the same time, the same complaints occur. Many people know this pattern – especially in Australia, where pollen load, climate, and regional plant world seasonally significantly influence allergies.

Seasonal allergies, usually in the form of allergic rhinitis, are among the most common chronic diseases. In Australia, they are widespread and affect children, adolescents, and adults. The complaints seem harmless at first glance but can noticeably impair daily life – from concentration problems in school or at work to poorer sleep and reduced quality of life.

What are seasonal allergies?

Seasonal allergies are understood to be allergic reactions that occur in certain seasons, usually when plants release pollen. Most commonly, it is allergic rhinitis, that is, inflammation of the nasal mucosa after contact with allergens. Typical triggers are grass, tree, and weed pollen.

The immune system reacts hypersensitively to actually harmless substances. After contact with pollen, messenger substances such as histamine are released. This leads to the known complaints: sneezing, runny or blocked nose, itching in the nose and eyes, as well as tearing eyes.

In Australia, the topic is particularly relevant. Allergic rhinitis is common, and estimates suggest that about one in five Australians is affected at some point in their life. Depending on the region, season, and weather conditions, the load can vary significantly.

Why are seasonal allergies so common in Australia?

Australia has a large climatic diversity. This also leads to significant differences in pollen seasons from state to state. In southern regions, grass pollen often plays a large role in spring and early summer. In other areas, certain tree or weed pollen can also be relevant.

Australia is particularly well-known in connection with so-called thunderstorm asthma events. Thunderstorms during times of high pollen load can cause pollen particles to break down into very small components and enter deeper into the respiratory tract. This is especially significant for people with asthma or inadequately treated allergy. The severe event in Melbourne in 2016 showed how serious this combination can be.

In addition, environmental factors such as wind, air pollution, and changing weather conditions can aggravate respiratory irritation or influence the distribution of pollen. Therefore, some people experience very different complaints from year to year.

What symptoms are typical?

The symptoms of seasonal allergies often resemble a cold, but usually last longer and often occur more strongly in certain months or when outdoors. The most common complaints include:

• repeated sneezing
• runny or blocked nose
• itching in the nose, throat, or eyes
• tearing, red eyes
• pressure feeling in the face
• reduced sleep and daytime fatigue

In some people, asthma symptoms such as coughing, wheezing, or shortness of breath also worsen. This is medically important because allergic rhinitis and asthma often occur together. Good control of nasal allergy can also help relieve the lower airways.

How do you distinguish between allergy and cold?

This question is often asked in pharmacies. It cannot always be clearly determined by symptoms alone, but some hints help:

• An allergy often causes severe itching in the nose and eyes; this is less typical for a cold.
• Fever is more indicative of an infection than of a seasonal allergy.
• Clear, watery nasal secretions are more indicative of an allergy; in infections, the secretion can become thicker over time.
• If complaints occur at the same time every year, this is more indicative of a pollen allergy.
• Symptoms that worsen outdoors or increase in windy weather can also indicate pollen.

If there is uncertainty, persistent complaints exist, or asthma symptoms occur, a medical evaluation is advisable. A diagnosis should not be based solely on assumptions.

What triggers play a role in Australia?

The most important seasonal triggers are pollen from grasses, trees, and weeds. In many parts of Australia, particularly grass pollen is clinically relevant. The exact pollen season depends on region and climate. While in some areas spring is in focus, elsewhere summer or autumn can be problematic.

An additional point is that not all complaints are exclusively seasonal. Some people react simultaneously to year-round allergens such as house dust mites, animal hair, or mold. Then the symptoms can be seasonally intensified but do not completely disappear.

What treatments are available?

The treatment depends on the type, frequency, and severity of the complaints. The goal is not only short-term relief but also a preferably good control over the season.

Commonly used medications include:

• Non-sedating antihistamines: They can relieve sneezing, itching, and runny nose. Some are available in tablet form.
• Intranasal corticosteroids: These nasal sprays are often considered particularly effective for moderate to severe complaints, especially with a blocked nose. They work best with regular use.
• Saline nasal rinses or sprays: They can remove pollen from the nose and soothe the mucous membranes.
• Eye drops: For itchy or tearing eyes, depending on the situation, anti-allergic preparations can be helpful.

Decongestant nasal sprays can provide short-term relief but should only be used for a few days, as otherwise there can be a medication-related worsening of nasal congestion.

In cases of more severe, persistent, or complicated courses, a medical assessment may be necessary. In some cases, further examinations or allergen-specific immunotherapy may be considered.

What role does the pharmacy play?

Pharmacists are the first point of contact for many people with hay fever and other seasonal allergies. They help to classify complaints, select suitable over-the-counter treatment options, and explain the correct application – for example with nasal sprays, where the technique is crucial for the success of the treatment.

Distinguishing warning signs is also part of pharmaceutical counseling. If symptoms are unusually severe, occur only on one side, fever occurs, or breathing difficulties exist, a referral for a medical examination may be warranted. Also important is counseling in existing illnesses such as asthma, during pregnancy, or when taking other medications.

Many community pharmacies in Australia also support general respiratory and allergy health through structured counseling, medication checks, and seasonal preparation tips.

What can you do in everyday life to reduce complaints?

Medications are often only part of the strategy. Especially during the pollen season, simple everyday measures can help to reduce allergen exposure:

• Keep windows closed on days with high pollen load, especially in strong wind.
• Shower and change clothes after prolonged outdoor stay to remove pollen.
• Dry laundry indoors during strong pollen season to prevent pollen from settling.
• Drive with closed windows in the car and use a suitable cabin filter if possible.
• Pay attention to pollen forecasts, especially with known strong allergies or asthma.

For people with asthma, it is particularly important to keep their personal treatment plan up to date and seek medical advice early in case of seasonal worsening.

When should you seek medical advice?

Not every runny nose needs to be medically evaluated. However, there are situations in which a medical assessment makes sense or is necessary. These include:

• Complaints that persist despite treatment or significantly impair daily life
• Shortness of breath, wheezing, coughing, or known asthma deterioration
• Frequent sleep disturbances or severe fatigue due to the symptoms
• Unclear complaints, fever, or pain in the face
• Symptoms in small children, during pregnancy, or with complex pre-existing conditions

A targeted diagnosis can help to avoid unnecessary treatments and better tailor the therapy to the actual trigger.

What are the key takeaway points?

Seasonal allergies are common in Australia and can cause significantly more than just an annoying runny nose. Pollen from grasses, trees, and weeds are the most important triggers, with region, weather, and season playing a large role. Typical complaints include sneezing, itchy eyes, blocked or runny nose, and sleep disturbances.

A good treatment often combines several elements: as low allergen exposure as possible, appropriately selected medications, and timely counseling. Pharmacists can assist in finding the right self-treatment and recognizing warning signs where medical evaluation is necessary. Especially with concurrent asthma, seasonal allergies should receive early attention.

Those who know their complaints and start prepared into the pollen season usually have the best chances of effectively controlling symptoms and noticeably easing daily life.

This information is for general purposes only and does not replace professional medical advice.