Where Did My Sense of Smell Go? What Your Nose May Be Telling You

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Dr. Brett Levine

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10/19/2026

Where Did My Sense of Smell Go? What Your Nose May Be Telling You

Have you ever noticed that your morning coffee doesn't smell quite as strong as it used to? Or that your favorite foods suddenly seem bland, even though your sense of taste hasn't completely disappeared?

Losing your sense of smell can be frustrating, confusing, and sometimes concerning. While temporary changes in smell are common during a cold or seasonal allergy flare-up, persistent smell loss may be a sign of an underlying condition affecting your nose, sinuses, or nervous system.

At Beach Cities ENTS in Torrance, CA, we help patients throughout the South Bay understand what may be causing changes in their sense of smell and explore treatment options based on the underlying cause.


Why Is Your Sense of Smell So Important?


Your sense of smell does more than help you enjoy your favorite foods, fragrances, or the ocean air along the South Bay coastline.

It also plays an important role in everyday safety and quality of life.

Your ability to smell helps you detect potential dangers, such as smoke, natural gas, or spoiled food. It also contributes significantly to how you experience flavor, which explains why food may taste different when your nose is congested.

When your sense of smell becomes reduced or disappears entirely, it can affect your appetite, mood, and overall well-being.

Medical professionals use two terms to describe changes in smell:

- **Hyposmia:** A reduced ability to detect odors.

- **Anosmia:** A complete loss of the sense of smell.

Both conditions can develop suddenly or gradually, depending on the underlying cause.

1. Chronic Sinusitis May Be Affecting Your Sense of Smell

One of the most common reasons people experience a reduced sense of smell is inflammation within the nasal passages and sinuses.

Chronic sinusitis occurs when the tissues lining your sinuses remain inflamed for an extended period, often causing swelling that interferes with normal airflow and mucus drainage.

Common symptoms include:

- Persistent nasal congestion

- Facial pressure or discomfort

- Thick nasal drainage

- Postnasal drip

- Reduced or lost sense of smell

- Difficulty breathing through the nose

When inflammation prevents odor molecules from reaching the smell receptors high inside your nasal cavity, your ability to detect scents may become significantly reduced.

For patients experiencing ongoing sinus symptoms, an ENT evaluation can help determine whether chronic inflammation, structural issues, or another condition is contributing to the problem.

2. Allergies Can Cause Temporary or Ongoing Smell Loss

Seasonal and environmental allergies are another common cause of changes in your sense of smell.

When your immune system reacts to allergens such as pollen, dust mites, mold, or pet dander, the lining of your nasal passages may become swollen and irritated.

This inflammation can interfere with airflow and make it more difficult for odors to reach your smell receptors.

Signs that allergies may be contributing to your symptoms include:

- Sneezing

- Itchy or watery eyes

- Clear nasal drainage

- Frequent congestion

- Symptoms that worsen during certain seasons or exposures

- Reduced ability to smell

In Torrance and surrounding South Bay communities, environmental allergens can contribute to nasal symptoms throughout different times of the year.

If allergy symptoms persist despite over-the-counter treatments, an ENT specialist can help evaluate whether allergies, sinus inflammation, or another condition is responsible.

 3. Nasal Polyps Could Be Blocking Your Sense of Smell

Nasal polyps are soft, noncancerous growths that develop along the lining of the nasal passages or sinuses.

Although smaller polyps may cause few noticeable symptoms, larger polyps can obstruct airflow and contribute to chronic inflammation.

Common symptoms of nasal polyps include:

- Persistent nasal obstruction

- Reduced or absent sense of smell

- Chronic sinus infections

- Postnasal drip

- Facial pressure

- Difficulty breathing comfortably through the nose

Nasal polyps are often associated with chronic rhinosinusitis and may require targeted treatment to manage inflammation and improve nasal function.

Depending on the severity of the condition, treatment options may include prescription nasal medications, other medical therapies, or sinus surgery when appropriate.

 4. A Recent Cold, Flu, or COVID-19 Infection May Be Responsible

Have you noticed changes in your sense of smell following a respiratory illness?

Viral infections are a well-recognized cause of sudden smell loss.

While nasal congestion during a cold can temporarily interfere with your ability to smell, some viruses may also affect the specialized cells and nerve pathways involved in detecting odors.

COVID-19 brought increased awareness to this issue because some patients experienced significant smell changes even without severe nasal congestion.

For many individuals, smell gradually improves as the body recovers. However, others may experience symptoms that last for weeks or months.

If your sense of smell has not returned after a respiratory illness, an ENT evaluation may help identify potential causes and appropriate management options.

In some cases, smell training, which involves regularly exposing yourself to a set of familiar scents, may be recommended to support recovery.

5. Structural Problems Inside Your Nose May Be Contributing

Not every case of smell loss is caused by allergies or infection.

Structural abnormalities inside the nose can also interfere with normal airflow.

A deviated septum, enlarged turbinates, or other forms of nasal obstruction may make it more difficult for air to reach the upper nasal cavity where smell receptors are located.

Patients with structural nasal problems may experience:

- Difficulty breathing through one or both nostrils

- Persistent congestion

- Frequent mouth breathing

- Recurrent sinus symptoms

- Reduced sense of smell

Depending on the findings of your evaluation, treatment may involve medication to reduce inflammation or procedures such as septoplasty or turbinate reduction to improve nasal airflow.

It's important to recognize that correcting nasal obstruction does not guarantee the return of normal smell function, particularly when other causes are present.

6. Sometimes Smell Loss Isn't Caused by Your Sinuses

Although nasal and sinus conditions are common causes of smell loss, they aren't the only possibilities.

Your sense of smell depends on a complex connection between specialized sensory cells in your nose and the brain.

Changes in smell can occasionally be associated with:

- Head injuries

- Certain medications

- Age-related changes

- Exposure to irritating chemicals

- Neurological conditions

- Damage to the olfactory nerves

In some cases, a reduced sense of smell may occur without noticeable nasal congestion.

An ENT specialist can help determine whether the problem originates in the nasal passages or whether additional evaluation may be appropriate.

When Should You See an ENT for Loss of Smell?

Occasional changes in your sense of smell during a cold or allergy flare-up are not always a cause for concern.

However, persistent or unexplained smell loss deserves medical attention.

Consider scheduling an ENT evaluation if:

- Your sense of smell has not returned after recovering from an illness.

- You experience ongoing nasal congestion or sinus pressure.

- Your smell loss develops suddenly without an obvious cause.

- You have recurring sinus infections.

- You suspect nasal polyps or another nasal obstruction.

- Your symptoms are affecting your appetite, safety, or quality of life.

If smell loss occurs following a head injury or is accompanied by sudden weakness, difficulty speaking, or other neurological symptoms, seek urgent medical evaluation.

How Does an ENT Diagnose Loss of Smell?

At Beach Cities ENTS, evaluating smell loss begins with understanding your symptoms, medical history, and any recent illnesses or environmental exposures.

Your ENT specialist may recommend:

 A Detailed Nasal Examination

An examination of your nasal passages can help identify congestion, swelling, or visible structural abnormalities.

Nasal Endoscopy

A thin, flexible camera may be used to examine areas deeper within the nasal cavity and look for inflammation, polyps, or other potential obstructions.

Smell Testing

Standardized smell tests can help measure the degree of smell impairment and establish a baseline for monitoring changes over time.

Imaging When Necessary

If chronic sinus disease, structural abnormalities, or other conditions are suspected, imaging such as a CT scan or MRI may be recommended.

The goal is to identify the underlying cause rather than simply treating the symptom.

Can You Get Your Sense of Smell Back?

The possibility of recovering your sense of smell depends largely on why it was lost.

When smell loss is caused by allergies or nasal inflammation, treating the underlying condition may help improve function.

Patients with nasal polyps or chronic sinusitis may benefit from medications or other targeted treatments.

For individuals experiencing smell loss following a viral infection, recovery can be gradual, and smell training may be helpful in certain situations.

However, some forms of smell loss may be long-lasting or permanent, particularly when nerve damage is involved.

A personalized evaluation can help determine which treatment options are appropriate and what outcomes may be realistic.

Frequently Asked Questions About Loss of Smell

Can sinus problems cause you to lose your sense of smell?

Yes. Chronic sinusitis, nasal inflammation, and nasal polyps can interfere with airflow and prevent odor molecules from reaching the smell receptors. Treating the underlying sinus condition may help improve smell function.

Why can't I smell anything even though my nose isn't congested?

Smell loss without congestion may occur following viral infections, certain medication exposures, head injuries, or changes affecting the olfactory nerves. An ENT evaluation can help determine whether further testing is needed.

Can allergies permanently affect your sense of smell?

Allergy-related smell changes are often temporary and improve when inflammation is controlled. However, prolonged inflammation or other underlying conditions may contribute to persistent symptoms.

How long does it take for your sense of smell to return?

Recovery varies depending on the cause. Some people notice improvement within days after a cold or allergy flare-up, while others recovering from viral infections may require weeks or months. Some individuals experience persistent smell impairment.

Can nasal polyps cause complete loss of smell?

Yes. Nasal polyps can significantly reduce or completely block the sense of smell, particularly when associated with chronic sinus inflammation. Treatment may improve symptoms, although results vary.

What kind of doctor should I see for loss of smell?

An otolaryngologist, commonly called an ear, nose, and throat (ENT) specialist, can evaluate nasal and sinus conditions that may be contributing to smell loss and determine whether additional testing is necessary.

Get Answers About Your Sense of Smell at Beach Cities ENTS in Torrance, CA

Losing your sense of smell can affect more than your ability to enjoy familiar scents. It may also be an indication that something is happening within your nose, sinuses, or the pathways responsible for detecting odors.

At Beach Cities ENTS, Dr. Brett Levine and Dr. Nathan Eivaz provide comprehensive ear, nose, and throat care for patients in Torrance, Hermosa Beach, Redondo Beach, Manhattan Beach, and surrounding South Bay communities.

Whether you're experiencing persistent congestion, recurring sinus problems, or unexplained changes in your sense of smell, our team can help identify potential causes and discuss appropriate treatment options.

Don't ignore persistent changes in your sense of smell.

**Schedule an appointment with Beach Cities ENTS in Torrance, CA, to learn more about your symptoms and available treatment options.**

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