Seasonal Allergies
Allergies that occur during specific times of the year, often related to pollen exposure.
Perennial Allergies
Allergies that occur year-round and are typically associated with indoor allergens.
Non-Allergic Rhinitis
Involves similar symptoms but is triggered by irritants rather than an immune response.
Pollen
Trees, grasses, and weeds
Dust Mites
Common in bedding and upholstery
Mold
Found in damp indoor or outdoor environments
Pet Dander
Skin cells and saliva from animals
Irritants
Smoke, pollution, or strong odors
Common Causes of Nasal Obstruction
Nasal obstruction can occur for several reasons, and multiple conditions may contribute at the same time.
Deviated Septum
​The septum is the wall separating the nasal passages. When it becomes significantly displaced, airflow through the nose may become restricted.
Enlarged Turbinates
Turbinates are structures inside the nose that help filter and humidify air. Chronic inflammation or allergies may cause them to enlarge and narrow the airway.
Nasal Valve Collapse
Weakness in the narrowest portion of the nasal airway can reduce airflow, especially during exercise or deep breathing.
Nasal Polyps and Chronic Inflammation
Polyps, swelling, allergies, and chronic sinus inflammation may also contribute to persistent congestion and breathing difficulty.
Schedule an Appointment
If chronic nasal blockage, congestion, or breathing difficulty is interfering with your sleep, exercise, or daily comfort, a comprehensive ENT evaluation may help identify the cause of your symptoms.
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At OC ENT & Sinus, we provide personalized care for patients experiencing chronic nasal obstruction and related sinus concerns throughout Southern California.

Nasal Obstruction Surgery
If you constantly feel congested, struggle to breathe through your nose, or rely on mouth breathing throughout the day or while sleeping, nasal obstruction may be affecting your quality of life.
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Many patients assume chronic congestion is simply caused by allergies or recurring sinus infections. In reality, structural issues inside the nose — including a deviated septum, enlarged turbinates, nasal valve collapse, or chronic inflammation — can significantly restrict airflow.
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At OC ENT & Sinus, Dr. Michael K. Kim evaluates the underlying cause of nasal obstruction and develop personalized treatment plans designed to improve nasal breathing and long-term comfort.
How Nasal Obstruction Is Evaluated
An accurate diagnosis is important because treatment depends on the underlying cause of the obstruction.
Your evaluation may include:
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Nasal examination
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Endoscopic evaluation
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Review of breathing and sleep symptoms
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Imaging studies when appropriate
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Assessment of sinus and allergy-related concerns
In many cases, patients have more than one contributing issue affecting airflow.
Treatment Options for Allergies
Treatment recommendations are individualized based on anatomy, symptom severity, and overall health. Depending on your condition, options may include:
Medical Management
Some patients improve with allergy management, nasal sprays, or treatment of underlying inflammation.
Septoplasty
Septoplasty is performed to straighten a deviated septum and improve airflow through the nose.
Turbinate Reduction
Reducing the size of enlarged turbinates may help create more space within the nasal airway.
VivAer
VivAer is an in-office procedure that uses controlled radiofrequency energy to support airflow improvement in selected patients with nasal valve narrowing.
Endoscopic Sinus Surgery
For patients with chronic sinus disease or structural blockage, endoscopic sinus surgery may help improve drainage and breathing function.
Recovery and Healing
Recovery varies depending on the procedure performed and the extent of treatment required. Some patients experience temporary congestion, swelling, or pressure during healing. Many individuals are able to return to normal daily activities within several days, though full healing may take longer depending on the procedure.
Our team provides detailed recovery guidance and ongoing follow-up throughout the healing process.
Antihistamines, nasal corticosteroid sprays, and decongestants (short-term use) may help inflammation and reduce symptoms.
Allergy testing may be recommended to help identify specific triggers contributing to your symptoms. This information can be used to guide treatment and avoidance strategies. For some patients, finding out what they’re allergic to is necessary for preventing potentially life-threatening reactions, such as allergies to bee stings or nuts.
Immunotherapy may be recommended for some patients with persistent allergy symptoms. This treatment involves gradually exposing the body to small amounts of allergens over time, which may help reduce sensitivity. It is typically considered when symptoms are not well-controlled with medications or avoidance strategies.
In some cases, additional in-office treatments may be considered to help manage chronic nasal symptoms related to allergies. These options are typically recommended based on individual evaluation and symptom severity.
In addition to medical treatment, certain lifestyle adjustments may help reduce exposure to triggers such as:
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Keeping windows closed during high pollen seasons
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Using air filtration systems
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Washing bedding regularly
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Avoiding known irritants such as smoke
These steps may help improve symptom control when combined with treatment.
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You may consider seeking evaluation if symptoms are persistent or worsening, over-the-counter treatments are not effective, symptoms interfere with sleep or daily activities, or you are unsure of the cause of your symptoms.
Dr. Kim commonly uses skin and blood tests for allergy testing. Skin tests include skin patch tests, skin prick tests, and intradermal tests. Oral food challenges and elimination diets may be used to test for food allergies.

Why Nasal Breathing Matters
Healthy nasal airflow plays an important role in sleep quality, exercise tolerance, sinus health, and daily comfort. When airflow becomes restricted, patients may experience:
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Chronic congestion
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Mouth breathing
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Snoring
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Poor sleep quality
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Facial pressure
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Frequent sinus infections
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Difficulty exercising comfortably
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Dry mouth or throat irritation
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Some patients notice symptoms gradually worsening over time, while others develop obstruction following injury, illness, or chronic inflammation.
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