The Connection between Sinusitis and Asthma

Introduction - Connection between Sinusitis and Asthma

Sinusitis and asthma are two prevalent medical conditions that often coexist, with nearly half of individuals suffering from moderate to severe asthma also experiencing sinusitis. The connection between these two conditions can pose challenges in managing symptoms, as the combination of sinusitis and asthma can leave individuals feeling unwell and miserable. If left untreated, sinusitis symptoms can exacerbate and potentially lead to more severe cases of asthma. This article explores the connection between sinusitis and asthma, highlighting how sinusitis can impact asthma and providing insights into effective symptom management for individuals with asthma and sinusitis.



Sinusitis occurs when the lining of the sinuses, the small cavities around the nose, becomes inflamed.

  • Headache
  • Pain in the cheeks, forehead, or top of the nose
  • Blocked nose
  • Loss of smell
  • Nasal discharge that may be green or yellow
  • Toothache-like pain
  • Fever

Symptoms can vary depending on the sinuses involved, with pain commonly felt in the forehead, upper jaw, teeth, area around the eyes, neck, ears, and top of the head.

  • Allergens
  • Viruses
  • Bacterial infections
  • Air pollution
  • Smog
  • Dry or cold air
  • Fungal infections
  • Smoking
  • Compromised immune system
  • Thick yellow or green mucus
  • Bad-tasting
  • Postnasal drip
  • Fever
  • Weakness
  • Fatigue
  • Cough

Sinusitis can be acute, lasting for days to weeks, or chronic, persisting for three months or more. While sinus infections are often caused by viruses, prolonged blockage can allow bacteria to invade, resulting in secondary infections. Chronic sinusitis, lasting longer than 12 weeks despite treatment, is believed to be a combination of infections and inflammation. Understanding the symptoms and causes of sinusitis can help individuals seek appropriate management and treatment options.


Asthma, characterized by inflammation in the airways, is a chronic disease that can result in asthma flare-ups or attacks. These episodes can vary in duration, with mild symptoms lasting a few minutes and severe symptoms persisting for hours or even days.

During an asthma attack, the airways become inflamed and produce excess mucus, causing narrowing and difficulty in breathing. This can lead to persistent coughing, audible wheezing sounds, and a sensation of tightness in the chest.

Common symptoms associated with asthma include:

  • Coughing
  • Wheezing
  • Shortness of breath
  • Rapid breathing
  • Tight chest

In some cases, approximately 5 to 10% of individuals with asthma experience severe symptoms. Alongside the typical asthma symptoms, severe asthma can contribute to chronic sinus infections, a diminished sense of smell, and the development of nasal polyps. Prompt medical attention and appropriate management are crucial for individuals with severe asthma to minimize the impact of these symptoms on their daily lives.

What is the connection between sinusitis and asthma?

connection between sinusitis and asthma

Numerous studies have established a connection between sinusitis and asthma, indicating that these conditions are often intertwined. About half of individuals with moderate to severe asthma also experience chronic sinus infections. The presence of sinusitis can complicate the management of asthma, aggravating airway inflammation and leading to worsening symptoms such as:

  • Coughing
  • Wheezing
  • Shortness of breath
  • Chest tightness
  • Disrupted sleep patterns

Treating sinus problems with medication has shown promise in relieving asthma symptoms. It is important for individuals with asthma to continue their daily asthma controller medication and promptly use a quick-relief inhaler at the first signs of asthma symptoms. Maintaining good asthma control can reduce the risk of developing severe sinus infections.

For those with allergic asthma, identifying and avoiding allergens that trigger asthma symptoms is crucial. Common allergens include grass, tree, and weed pollen, indoor and outdoor mold, as well as pet dander and dust mites.

Chronic sinusitis, which can be associated with allergic conditions like hay fever, may lead to blocked drainage channels and subsequent sinus infection or inflammation. Severe cases of asthma have been found to be more prevalent in individuals with sinusitis, and the severity of sinusitis appears to be linked to the severity of asthma symptoms. Women, individuals with acid reflux (GERD), and smokers may have an increased risk of developing sinusitis when they have asthma.

Although more research is needed to establish a definitive link between the treatment of sinusitis and asthma, some studies have demonstrated that addressing sinusitis can lead to improved asthma symptoms, particularly when sinus conditions are treated early in children. However, further investigation is necessary to fully understand the relationship and potential shared treatments between these two conditions.

How are sinusitis and asthma treated?

The treatment of sinusitis depends on the nature of the condition, whether it is acute or chronic, and its underlying cause. Acute symptoms caused by viral infections generally resolve on their own within a couple of weeks. Over-the-counter decongestants and other medications can provide relief by clearing the airways and alleviating headaches. However, if symptoms persist beyond 10 days, it is advisable to seek medical attention.

In cases where a bacterial infection is suspected, antibiotics may be prescribed to eliminate the infection and reduce inflammation.

Allergy specialists can help determine if underlying allergies or asthma contribute to sinusitis symptoms. They can also assist in developing a comprehensive management plan for asthma, including preventive treatments aimed at reducing inflammation and persistent symptoms. Collaborating with an asthma specialist is essential to develop an individualized treatment plan to prevent and alleviate symptoms of both asthma and sinusitis.

Treatment for sinusitis can also involve a combination of medications such as:

  • Antihistamines
  • Decongestants
  • Inhaled steroids
  • Steroid nasal sprays
  • Leukotriene modifiers
  • Allergy shots (immunotherapy)
  • Bronchodilators

Antibiotics may be prescribed for bacterial sinus infections, while home remedies such as nasal washes and humidifiers can help alleviate nasal congestion.

For chronic sinusitis cases associated with physical nasal passage issues, surgical interventions may be necessary. These can include correcting narrow nasal passages, deviated septum, or removing nasal polyps to alleviate chronic inflammation and swelling in the sinuses.

In asthma treatment, a variety of medications can be utilized. 

  • Reliever inhalers containing short-acting beta2-agonists (SABAs) to open the airways during asthma attacks
  • Corticosteroids to reduce airway swelling
  • Short-acting anticholinergics to quickly open the airways
  • Corticosteroids to reduce inflammation
  • Biologics administered through injections
  • Leukotriene modifiers to decrease swelling and maintain open airways
  • Mast cell stabilizers to prevent airway swelling
  • Long-acting bronchodilators to prevent airway constriction
  • Allergy shots (immunotherapy) to mitigate the impact of allergens
  • Rest
  • Fluids
  • Pain relievers
  • Steam inhalation
  • Saline nasal rinses
  • Saltwater nasal sprays

It is important to consult with healthcare professionals for appropriate guidance and to address any potential interactions with other medications or conditions.

Can post nasal drip trigger asthma?

Postnasal drip syndrome, a condition characterized by the sensation of nasal mucus accumulating or draining into the throat, is commonly experienced by individuals. The glands in the nose and throat continuously produce mucus to cleanse the nasal membranes, warm the inhaled air, and trap foreign particles. This mucus also plays a role in fighting off infections.

Under normal circumstances, the secretions from the nasal and throat mucous glands keep the throat moist. This is part of the body’s defense system against diseases, known as the mucous-nasal cilia system. However, when there is an excessive or thickened production of mucus in the nose and sinuses, the body’s natural response is to induce coughing and throat clearing in an attempt to eliminate it.

In some cases, postnasal drip syndrome can be associated with asthma. The thick mucus secretions from the nose can drain down the back of the throat, leading to symptoms such as throat clearing, coughing, and constriction of the bronchial airways.

When to consult a doctor?

People with asthma are advised to have regular checkups and should promptly inform a healthcare professional if their asthma attacks become more frequent or severe. If they experience symptoms such as:

  • Dizziness
  • Weakness
  • Feeling faint
  • Difficulty performing daily activities
  • A persistent cough
  • Wheezing

It is important to seek medical advice.

In cases of severe asthma symptoms, immediate action is necessary. If individuals notice:

  • Lips or nails turning blue
  • Flaring nostrils with every inhale
  • Stretched-looking skin between the ribs or at the base of the throat during breathing
  • Breathing 30 or more times per minute
  • If talking or walking at a normal pace becomes difficult

Then they are advised to go to the emergency room.

For those with symptoms of sinusitis, it is recommended to consult a healthcare professional if they experience:

  • Multiple sinus infections within a year
  • Severe headaches
  • Intense facial pain
  • Symptoms that worsen after initially improving
  • Symptoms that persist for more than 10 days
  • A fever lasting 3–4 days

Seeking medical attention in these situations can ensure appropriate management and treatment.

Conclusion - Connection between Sinusitis and Asthma

When individuals experience symptoms of sinusitis, such as ongoing nasal congestion and pain, it is crucial for them to consult with a healthcare professional, particularly if they already have asthma. Although the precise connection between sinusitis and asthma remains unclear, there are various treatment options available for both conditions. By addressing sinusitis, individuals can aim to alleviate nasal congestion and related symptoms, which may subsequently help alleviate breathing difficulties associated with asthma. Seeking medical advice allows for proper management and treatment of recurring or chronic sinusitis, while considering the individual’s specific asthma medications.

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Medically reviewed by SinusDoctor,
Dr G V K Chaitanya Rao

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