What Causes Nasal Congestion? Nasal Congestion Causes

14 AUG 2018

Just a few days ago, you had no complaints—you were feeling fine and ready to go. But then you woke up with a stuffy nose—that unmistakable sensation of something wrong going on inside your body.

What causes nasal congestion? Have you caught a cold? Could it be the flu? Maybe it’s just your allergies acting up again. Even though nasal congestion is a common symptom of numerous ailments, you can probably figure out what’s behind your stuffy nose simply by taking stock of your other symptoms.

Keep reading to get help finding out what is causing your nasal congestion and to find appropriate relief for your nasal congestion’s cause.

What is Nasal Congestion?

Nasal congestion, commonly referred to as a stuffy nose, occurs when the tissues and blood vessels in the nasal passages become swollen with excess fluid. This can lead to a feeling of stuffiness and difficulty breathing through the nose. It's a common symptom of many illnesses, including the common cold, flu, and allergies. Understanding what causes nasal congestion is key to finding effective relief.

Nasal Congestion Causes and Symptoms

Nasal congestion can manifest in several ways. Common symptoms include:

• Difficulty breathing through the nose
• Increased mucus production
• Sinus pressure or pain
• Swollen nasal tissues

Nasal congestion causes are varied and can include:

1. Common Cold and Flu: Viral infections like the common cold and flu are frequent culprits of nasal congestion. These infections cause inflammation in the nasal passages, leading to congestion.
2. Allergies: Allergens such as pollen, dust mites, and pet dander can trigger allergic reactions, resulting in nasal congestion. This is because the body's immune response to allergens includes the release of histamines, which cause nasal tissues to swell.
3. Sinusitis: This condition, often known as a sinus infection, involves inflammation of the sinuses. Sinusitis can lead to severe nasal congestion, pressure around the eyes and cheeks, and a sore throat.
4. Environmental Irritants: Exposure to smoke, strong odors, and pollution can irritate the nasal passages, leading to congestion.
5. Structural Issues: Deviated septum or nasal polyps can obstruct the nasal passages and cause chronic congestion.

Understanding what really causes nasal congestion involves looking at both immediate triggers and underlying factors. For example, while a common cold might cause temporary congestion, chronic conditions like sinusitis or structural abnormalities in the nasal passages can lead to persistent symptoms.

Nasal Congestion From the Common Cold

You may think that you have a stuffy nose because your body is producing more mucus, but that’s only partly true. Nasal congestion happens when the tissues in your nose become swollen because of inflamed blood vessels.

It’s one of the first things to occur when you catch a common cold. There are more than 200 viruses that can cause a cold, according to the Centers for Disease Control and Prevention, which may help explain why most adults come down with two to three colds each year. Common cold symptoms include nasal congestion, sneezing, postnasal drip, a sore throat, and coughing. Although you may feel more fatigued than usual, you probably won’t run a fever, have a headache, or experience body aches.

Nasal Congestion From the Flu

The dreaded flu—once you’ve had it, it’s the last thing you’ll ever want to have again. That’s because the flu typically comes with a high fever that lasts for days, a headache, and general aches and pains that can be quite severe, as well as the kind of fatigue that can leave you feeling weak for up to three weeks. Although people with the flu don’t always have significant nasal congestion, having some amount of congestion is relatively common. You may also experience a sore throat, a cough, and some chest discomfort. A cold may interfere with your day-to-day life, but the flu is far more likely to knock you off your feet for a while.

Nasal Congestion From Sinusitis

Nasal congestion is a hallmark symptom of acute sinusitis, commonly known as a sinus infection. Many times, a sinus infection starts with a cold virus—a cold that lingers or gets worse after five to seven days is often a sign of sinusitis. With this type of infection, both the tissues lining your nasal passage and those lining your sinuses become inflamed. Mucus builds up and may cause headaches, pressure behind your eyes, and general facial tenderness.

Sinusitis usually comes with a sore throat and cough caused by postnasal drip, a fever, fatigue, and bad breath. Though sinus infections are often treated with antibiotics and can be caused by bacteria, many of them are viral.

Nasal Congestion From Allergies

It’s easy to see why it can be hard to distinguish between having a cold and dealing with allergies, as the two have several symptoms. Nasal congestion, with or without a runny nose, is part and parcel of most airborne allergies. Sneezing is also common, and you may also experience a sore throat and a cough. You know you have allergies, however, when your cold-like symptoms also come with wheezing and watery or itchy eyes. Another major difference between having a cold and dealing with allergies is that a cold takes a few days to develop, while the stuffy nose of an allergic reaction begins shortly after you’ve been exposed to an allergen.

At-Home Nasal Congestion Remedy Ideas

Whenever you’re feeling under the weather, it’s important to prioritize rest so your immune system is at its best. And no matter what your nasal congestion causes, you can find immediate relief by doing any or all of the following:

• Drink plenty of fluids to thin your mucus.
• Apply a warm, moist cloth across your nose to loosen mucus.
• Run a humidifier or vaporizer as you sleep at night to help get your mucus flowing. Sitting in a steamy bathroom a few times each day will have a similar effect.
• If you’re fighting a viral infection, try Mucinex D for powerful symptom relief of chest and nasal congestion to help shrink your nasal passages so you can breathe easier.
• If you have allergies, an antihistamine may help alleviate your symptoms.

It is important to note that it is crucial to use over-the-counter (OTC) medications as directed and seek medical care when necessary. If your symptoms persist, worsen, or are accompanied by severe pain, high fever, or difficulty breathing, it is essential to consult a healthcare professional for a proper diagnosis and appropriate treatment.

Treatment for Nasal Congestion

When it comes to relieving nasal congestion, finding an effective treatment is crucial for comfort and overall well-being. Mucinex Sinus-Max® Severe Nasal Congestion Relief Clear & Cool Nasal Spray can help in this regard.

This non-drowsy spray provides targeted sinus congestion relief allowing you to breathe freer through the nose and feel more comfortable throughout the day or night. Whether your nasal congestion is caused by upper respiratory allergies or other factors such as a cold or the flu, Mucinex Sinus-Max offers a variety of solutions to help you manage your symptoms effectively.

When to Contact a Medical Professional

While nasal congestion is often a minor and temporary issue, there are times when it's important to seek medical advice. Contact a healthcare provider if you experience any of the following:

1. Persistent Congestion: If nasal congestion lasts more than seven days for adults or five days for children without improvement, it may indicate an underlying condition that requires treatment.
2. Severe Symptoms: If you have severe symptoms such as fever, rash, persistent headache, or facial pain, these could be signs of a more serious illness. If you experience a fever that worsens or lasts longer than three days, stop taking any over-the-counter medications and consult your doctor.
3. Recurring Issues: Frequent or recurring nasal congestion might suggest chronic conditions like allergies or sinusitis that need long-term management. Additionally, if your symptoms worsen after improving, see your doctor for an evaluation.
4. Additional Symptoms: If nasal congestion is accompanied by any other severe or concerning symptoms, see a healthcare professional, who can help determine the cause and appropriate treatment.

Now You Know What Causes Nasal Congestion

After reading this blog post, you now have a better understanding of what really causes nasal congestion. Whether it's due to the common cold, the flu, sinusitis, or allergies, nasal congestion can be a bothersome symptom that affects your daily life. The common cold and the flu come with their own set of symptoms, including fatigue, a sore throat, and coughing, while sinusitis involves inflammation of the nasal and sinus tissues. Allergies, on the other hand, can cause nasal congestion along with sneezing, itchy eyes, and wheezing.

Fortunately, there are several ways to find relief, such as getting plenty of rest, staying hydrated, using warm compresses, running a humidifier, and considering over-the-counter decongestants or antihistamines. By understanding the underlying nasal congestion causes and exploring appropriate remedies, you can better manage nasal congestion and its causes.

References

1. MedlinePlus, Undated, Stuffy or Runny Nose — Adult
2. Centers for Disease Control and Prevention, 2021, Antibiotic Prescribing and Use: Common Cold
3. NIH News in Health, 2014, Cold, Flu, or Allergy? Know the Difference for Best Treatment
4. American Academy of Allergy Asthma and Immunology, 2012, Colds, Allergies and Sinusitis— How to Tell the Difference
5. Shaikh, N., Hoberman, A., Kearney, D. H., Colborn, D. K., Kurs-Lasky, M., Jeong, J. H., Haralam, M. A., Bowen, D., Flom, L. L., & Wald, E. R. (2013). Signs and Symptoms that Differentiate Acute Sinusitis from Viral Upper Respiratory Tract Infection. The Pediatric Infectious Disease Journal, 32(10), 1061.
6. CDC. Sinus Infection Basics. Sinus Infection. Published April 23, 2024.