Introduction

Hay fever, also known as allergic rhinitis, is one of the most common allergic conditions worldwide, affecting millions of adults and children every year. Despite its name, hay fever is not caused by hay and does not usually cause fever. Instead, it is an allergic response to airborne allergens such as pollen, dust mites, mould spores or animal dander.

Although hay fever is not usually a dangerous condition, it can significantly affect quality of life. Persistent sneezing, nasal congestion, itchy eyes and fatigue may interfere with sleep, reduce concentration, impair work performance and limit outdoor activities. For many people, symptoms return every year during specific pollen seasons, while others experience allergy symptoms throughout the year.

The Mediterranean climate of Mallorca offers many health benefits, but it also exposes residents and visitors to a wide variety of seasonal pollens. Olive trees, grasses, cypress trees and other local plants may trigger allergic rhinitis, particularly during the spring and early summer months. Visitors who are unfamiliar with the local pollen calendar may unexpectedly develop symptoms during their stay.

Hay fever often coexists with other allergic conditions, including asthma, eczema and allergic conjunctivitis. Poorly controlled allergic rhinitis may also contribute to sinusitis, ear problems and worsening asthma symptoms.

Understanding the causes, recognising the symptoms and receiving an accurate medical assessment can help improve symptom control and reduce the impact of allergies on everyday life.

What Is Hay Fever (Allergic Rhinitis)?

Hay fever is an allergic condition in which the immune system overreacts to harmless airborne substances known as allergens.

When a susceptible person inhales an allergen, the immune system produces immunoglobulin E (IgE) antibodies. These antibodies trigger immune cells to release inflammatory chemicals, including histamine, resulting in swelling and irritation of the lining of the nose, eyes and upper airways.

This immune response produces the characteristic symptoms of allergic rhinitis, including:

• Sneezing.
• Runny nose.
• Nasal congestion.
• Itchy nose.
• Itchy eyes.
• Watery eyes.
• Itchy throat.

Unlike the common cold, allergic rhinitis is not caused by an infection and cannot be passed from one person to another.

Types of Allergic Rhinitis

Allergic rhinitis is generally classified according to the timing and duration of symptoms.

Seasonal Allergic Rhinitis

Seasonal allergic rhinitis occurs during specific times of the year when pollen levels are high.

Common triggers include:

• Grass pollen.
• Tree pollen.
• Weed pollen.
• Olive tree pollen.
• Cypress pollen.

Symptoms often vary depending on the local climate and pollen season.

Perennial Allergic Rhinitis

Perennial allergic rhinitis causes symptoms throughout the year.

Common indoor allergens include:

• House dust mites.
• Animal dander.
• Mould spores.
• Cockroach allergens.

Symptoms may fluctuate depending on exposure but are often persistent.

Occupational Allergic Rhinitis

Some people develop allergic rhinitis as a result of workplace exposure.

Potential occupational allergens include:

• Flour.
• Wood dust.
• Animal proteins.
• Laboratory chemicals.
• Latex.
• Agricultural dust.

Symptoms often improve during weekends or holidays away from work.

Common Causes

Hay fever develops when susceptible individuals are exposed to airborne allergens.

Pollen

Pollen is the most common cause of seasonal allergic rhinitis.

Important pollen sources include:

• Grass.
• Olive trees.
• Cypress.
• Birch.
• Ragweed.
• Various flowering plants.

Pollen counts are typically highest during warm, dry and windy weather.

House Dust Mites

House dust mites are microscopic organisms that live in:

• Mattresses.
• Pillows.
• Carpets.
• Upholstered furniture.
• Bedding.

They are one of the most common causes of year-round allergy symptoms.

Animal Dander

Proteins found in the skin cells, saliva and urine of animals may trigger allergies.

Common sources include:

• Cats.
• Dogs.
• Horses.
• Rabbits.
• Rodents.

Contrary to popular belief, the fur itself is not the allergen.

Mould Spores

Indoor and outdoor moulds release microscopic spores into the air.

Exposure is more common in:

• Damp buildings.
• Poorly ventilated rooms.
• Bathrooms.
• Basements.
• Areas affected by water damage.

Occupational Allergens

Repeated exposure to certain workplace substances may gradually lead to allergic sensitisation.

Healthcare workers, farmers, bakers, veterinarians and laboratory staff are among the professions at increased risk.

Risk Factors

Several factors increase the likelihood of developing allergic rhinitis.

These include:

• Family history of allergies.
• Asthma.
• Eczema (atopic dermatitis).
• Other allergic conditions.
• Exposure to tobacco smoke during childhood.
• High pollen exposure.
• Living with indoor allergens such as dust mites or pets.
• Occupational exposure to airborne allergens.

Individuals with allergic rhinitis frequently have other allergic diseases, a phenomenon known as atopy.

Common Symptoms

Symptoms usually begin shortly after exposure to an allergen.

Common symptoms include:

Nose

• Repeated sneezing.
• Runny nose.
• Blocked nose.
• Itchy nose.
• Postnasal drip.

Eyes

• Itchy eyes.
• Watery eyes.
• Red eyes.
• Puffy eyelids.

Mouth and Throat

• Itchy palate.
• Itchy throat.
• Frequent throat clearing.

Ears

• Ear pressure.
• Itching inside the ears.
• Temporary hearing reduction caused by Eustachian tube dysfunction.

General Symptoms

• Fatigue.
• Poor sleep.
• Reduced concentration.
• Irritability.
• Reduced productivity at work or school.

Although allergic rhinitis is not usually dangerous, persistent inflammation may significantly reduce quality of life and contribute to other conditions, including sinusitis, middle ear problems and poorly controlled asthma.

When Should You Seek Emergency Medical Care?

Hay fever is rarely life-threatening. However, certain symptoms may indicate a more serious allergic reaction or another medical condition requiring urgent assessment.

Seek immediate emergency medical attention if you experience:

• Difficulty breathing.
• Severe wheezing.
• Swelling of the lips, tongue or throat.
• Difficulty swallowing.
• Hoarseness associated with throat swelling.
• Chest tightness that is rapidly worsening.
• Loss of consciousness or collapse.
• Severe dizziness.
• Blue lips or fingertips.
• Symptoms of anaphylaxis after exposure to an allergen.

These symptoms are not typical of hay fever and may indicate a severe allergic reaction requiring emergency treatment.

When Should You Arrange a Medical Assessment?

Although many people manage hay fever with over-the-counter medication, medical assessment is recommended if:

• Symptoms persist despite treatment.
• Nasal congestion becomes severe.
• Symptoms interfere with sleep or daily activities.
• You develop recurrent sinus infections.
• You experience ear pain or hearing changes.
• You have asthma that worsens during allergy season.
• Symptoms occur throughout the year without an obvious trigger.
• You are uncertain whether your symptoms are caused by allergies or another condition.
• Symptoms first develop during adulthood without any previous history of allergies.

A medical assessment can identify the specific cause of symptoms and help develop a personalised treatment plan.

How Is Hay Fever Evaluated?

Diagnosis begins with a detailed medical history and physical examination.

Your doctor may ask questions such as:

• When did your symptoms begin?
• Do they occur at a particular time of year?
• Are symptoms worse outdoors?
• Do symptoms improve indoors?
• Do you have pets?
• Have you recently travelled?
• Is there a family history of allergies?
• Do you have asthma or eczema?
• Which medications have you already tried?
• Are your symptoms affecting your sleep or work?

The pattern and timing of symptoms often provide valuable clues to the underlying allergen.

Physical Examination

A comprehensive examination may include:

• Assessment of the nasal passages.
• Examination of the eyes.
• Inspection of the throat.
• Examination of the ears.
• Assessment of the chest and lungs.
• Measurement of vital signs when clinically indicated.

Typical findings may include:

• Pale or swollen nasal lining.
• Clear nasal discharge.
• Red, watery eyes.
• Dark circles beneath the eyes ("allergic shiners").
• A horizontal crease across the nose caused by frequent rubbing (the "allergic salute").

The examination also helps exclude other conditions that may mimic allergic rhinitis.

Additional Investigations

Further investigations are not always necessary.

However, depending on the clinical history, your doctor may recommend:

• Skin prick testing.
• Serum specific IgE blood tests.
• Lung function testing if asthma is suspected.
• Nasal endoscopy in selected cases.
• CT imaging if chronic sinus disease is suspected.

Testing is particularly useful when symptoms are persistent, severe or when identifying the specific allergen would influence treatment.

Treatment for Hay Fever

Treatment depends on symptom severity, the duration of symptoms and the underlying allergen.

Allergen Avoidance

Whenever possible, reducing exposure to allergens is the first step in treatment.

Helpful measures include:

• Keeping windows closed during periods of high pollen counts.
• Showering and changing clothes after spending time outdoors.
• Drying laundry indoors during peak pollen season.
• Using high-quality air filtration where appropriate.
• Wearing sunglasses outdoors to reduce pollen exposure to the eyes.
• Limiting outdoor activities when pollen levels are exceptionally high.

Complete avoidance is rarely possible, but reducing exposure often improves symptom control.

Antihistamines

Antihistamines are commonly used to relieve:

• Sneezing.
• Itchy nose.
• Runny nose.
• Itchy eyes.
• Watery eyes.

Modern non-sedating antihistamines are generally preferred because they are less likely to cause drowsiness.

Intranasal Corticosteroid Sprays

Intranasal corticosteroids are considered one of the most effective treatments for moderate to severe allergic rhinitis.

They help reduce:

• Nasal inflammation.
• Congestion.
• Sneezing.
• Nasal itching.
• Runny nose.

Maximum benefit may take several days of regular use.

Eye Drops

For patients with troublesome eye symptoms, medicated eye drops may help reduce:

• Itching.
• Redness.
• Excessive tearing.

Different formulations are available depending on symptom severity.

Nasal Saline Irrigation

Saline nasal rinses can help:

• Remove pollen and allergens from the nasal passages.
• Improve nasal congestion.
• Reduce irritation.
• Enhance the effectiveness of nasal medications.

Many patients find regular saline irrigation particularly helpful during pollen season.

Immunotherapy (Allergy Desensitisation)

For selected patients with persistent or severe allergic rhinitis, allergy immunotherapy may be recommended by an allergy specialist.

Treatment involves controlled exposure to the allergen over an extended period to reduce the immune system's sensitivity.

Immunotherapy may significantly improve symptoms and reduce the need for medication in appropriately selected patients.

Can Hay Fever Lead to Other Health Problems?

Although hay fever itself is not dangerous, poorly controlled allergic rhinitis may contribute to several other medical conditions, including:

• Chronic sinusitis.
• Recurrent ear infections.
• Eustachian tube dysfunction.
• Sleep disturbance.
• Reduced concentration.
• Poorly controlled asthma.

Early treatment may reduce the risk of these complications and improve overall quality of life.

Common Myths About Hay Fever

Myth 1: Hay fever only occurs in spring.

False.

Different plants release pollen at different times of the year. Some people experience symptoms during spring, others during summer or autumn, while perennial allergic rhinitis may occur throughout the year.

Myth 2: Rain always makes hay fever worse.

False.

Light or prolonged rainfall often reduces airborne pollen by washing it out of the atmosphere, temporarily improving symptoms. However, thunderstorms may occasionally increase the concentration of small pollen particles in the air, worsening symptoms in susceptible individuals.

Myth 3: Hay fever is just a minor nuisance.

False.

Although not usually dangerous, untreated allergic rhinitis can significantly affect sleep, work performance, school attendance and quality of life. It may also contribute to asthma and chronic sinus disease.

Myth 4: Moving to a different country permanently cures hay fever.

False.

Changing location may reduce exposure to one allergen but often introduces exposure to different pollens or environmental allergens. New allergies can develop over time.

Myth 5: Nasal sprays become addictive.

Partly true.

Intranasal corticosteroid sprays used for allergic rhinitis are not addictive and are safe when used as directed.

However, overuse of decongestant nasal sprays for more than a few days can lead to rebound nasal congestion (rhinitis medicamentosa), making symptoms worse.

Medical Assessment for Hay Fever at Dr. Indhira Ghyssaert's Practice in Mallorca

At Dr. Indhira Ghyssaert's practice in Mallorca, patients with symptoms of hay fever receive a comprehensive medical assessment to confirm the diagnosis, identify potential triggers and develop a personalised treatment plan.

Because symptoms such as nasal congestion, sneezing and watery eyes may also be caused by viral infections, sinusitis, nasal polyps or other respiratory conditions, establishing an accurate diagnosis is essential before treatment is recommended.

The assessment aims to identify the underlying cause of symptoms, evaluate their impact on daily life and determine the most appropriate evidence-based management strategy.

Depending on the patient's symptoms and clinical findings, the assessment may include:

• A detailed medical history.
• Review of seasonal and environmental exposures.
• Identification of potential allergens.
• Measurement of vital signs when clinically indicated.
• Examination of the nose, eyes, ears and throat.
• Assessment of the chest if asthma symptoms are present.
• Blood tests when clinically appropriate.
• Referral for allergy testing or specialist assessment if indicated.
• Evaluation for associated conditions such as asthma or chronic sinusitis.

Treatment recommendations are tailored to each patient's symptoms and follow current evidence-based clinical guidelines.

Management may include lifestyle measures to reduce allergen exposure, prescription medication, treatment of associated conditions or referral for allergy immunotherapy when appropriate.

The primary goal is to improve symptom control, enhance quality of life and reduce the risk of long-term complications.

Hay Fever While Visiting Mallorca

Many visitors are surprised to develop allergy symptoms while holidaying in Mallorca, even if they have never experienced hay fever before.

The island's Mediterranean climate supports a wide variety of flowering plants and trees. During the pollen season, grasses, olive trees, cypress trees and other local vegetation may release significant amounts of pollen into the air.

Travellers often spend more time outdoors than usual, increasing exposure to airborne allergens.

Typical symptoms include:

• Sneezing.
• Runny nose.
• Blocked nose.
• Itchy eyes.
• Watery eyes.
• Fatigue.

Although hay fever itself is not dangerous, persistent symptoms can interfere with sleep, sightseeing, sports and other holiday activities.

Medical assessment is advisable if symptoms become severe, fail to improve with over-the-counter treatment or are associated with wheezing, shortness of breath or recurrent sinus infections.

Frequently Asked Questions

Is hay fever the same as a common cold?

No.

Hay fever is an allergic condition caused by an abnormal immune response to airborne allergens.

The common cold is caused by a viral infection.

Unlike a cold, hay fever does not cause fever, is not contagious and often produces intense itching of the eyes and nose.

Can hay fever develop later in life?

Yes.

Although many people develop allergic rhinitis during childhood or early adulthood, it may begin at any age.

New environmental exposures or changes in the immune system may contribute to adult-onset allergies.

Can hay fever cause sinus infections?

Yes.

Persistent nasal inflammation and congestion may impair normal sinus drainage, increasing the risk of acute or chronic sinusitis.

Effective treatment of allergic rhinitis may help reduce this risk.

Can hay fever worsen asthma?

Yes.

The nose and lungs form part of the same respiratory system.

Poorly controlled allergic rhinitis is associated with poorer asthma control and an increased likelihood of asthma flare-ups.

Managing hay fever often improves asthma symptoms.

Can I prevent hay fever completely?

Complete prevention is rarely possible because pollen and other airborne allergens are difficult to avoid entirely.

However, reducing allergen exposure and following an appropriate treatment plan can significantly improve symptom control and reduce the impact on daily life.

When should I consider allergy immunotherapy?

Allergy immunotherapy may be considered if:

• Symptoms remain severe despite appropriate medication.
• Allergies significantly affect quality of life.
• Long-term medication provides inadequate control.
• The responsible allergen has been clearly identified.

An allergy specialist can determine whether immunotherapy is appropriate for your individual circumstances.

Key Takeaways

• Hay fever (allergic rhinitis) is a common allergic condition affecting the nose and eyes.
• It is most commonly triggered by pollen, dust mites, mould spores and animal dander.
• Symptoms include sneezing, nasal congestion, runny nose, itchy eyes and fatigue.
• Although not usually dangerous, untreated hay fever can impair quality of life and contribute to sinusitis and poor asthma control.
• Accurate diagnosis and personalised treatment can significantly improve symptom control and reduce recurrent symptoms.

Conclusion

Hay fever is one of the most common allergic conditions and can have a considerable impact on everyday life, particularly during periods of high pollen exposure.

Although the condition is rarely serious, persistent symptoms can affect sleep, work performance, exercise and overall wellbeing. Effective treatment depends on identifying the underlying trigger, reducing allergen exposure where possible and selecting the most appropriate evidence-based therapy.

A comprehensive medical assessment helps distinguish allergic rhinitis from other conditions with similar symptoms, including viral infections, sinusitis and structural nasal disorders.

At Dr. Indhira Ghyssaert's practice in Mallorca, patients receive personalised, evidence-based medical care focused on identifying the underlying cause of allergy symptoms and providing an individualised management plan for both short-term relief and long-term control.

About Dr. Indhira Ghyssaert

Dr. Indhira Ghyssaert is a physician based in Mallorca with a special interest in acute medical care, preventive healthcare and personalised medicine.

She provides comprehensive medical assessments for residents and international visitors experiencing allergic conditions, respiratory symptoms, sinus disorders and other acute medical concerns, combining evidence-based medicine with an individualised approach to patient care.

Medical Disclaimer

The information provided in this article is intended for educational purposes only and should not replace professional medical advice, diagnosis or treatment.

Although hay fever is generally not a medical emergency, difficulty breathing, swelling of the lips, tongue or throat, severe wheezing or symptoms suggestive of anaphylaxis require immediate emergency medical attention. If you experience these symptoms, contact your local emergency services or attend the nearest emergency department without delay.