Chronic Sinusitis

Sinus inflammation lasting more than three months

Written by: Saygı Hospital Health Guide Editorial Board

Last updated: June 11, 2026

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our KBB (Kulak Burun Boğaz) department. Book Appointment →

What is Chronic Sinusitis?

Chronic sinusitis is persistent inflammation of the sinus mucosa exceeding 12 weeks. It is divided into two main subtypes based on polyp presence: chronic sinusitis with nasal polyps (CRSwNP) and without nasal polyps (CRSsNP).

In its pathophysiology, impaired mucociliary clearance, ostial obstruction and biofilm formation play a central role. Underlying allergy, asthma, immune deficiency or anatomical variants may complicate the condition.

If untreated it can lay the groundwork for serious complications such as orbital cellulitis, meningitis or osteomyelitis.

Symptoms

Nasal congestion exceeding 12 weeks

Anterior or posterior nasal discharge (postnasal drip)

Pressure and fullness sensation on the face

Decrease or loss of sense of smell

Chronic cough (especially at night)

Headache and fatigue

Risk Factors

Untreated acute sinusitis episodes

Allergic rhinitis or asthma

Nasal polyps and septal deviation

Smoking and air pollution exposure

Immune deficiency (primary or secondary)

Aspirin/NSAID hypersensitivity (Samter's triad)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

When nasal symptoms exceed 12 weeks
When antibiotic treatment fails to provide a response
When sense of smell is completely lost
When swelling around the eyes or double vision develops
When high fever or severe headache is added

Treatment Methods

Topical nasal corticosteroid sprays (long-term)

Nasal irrigation with saline solution

Short-term systemic corticosteroid course

Long-term antibiotics based on culture results

Functional endoscopic sinus surgery (FESS)

Biological therapies (dupilumab — in refractory cases with polyps)

Which Department to Visit?

You can visit our KBB (Kulak Burun Boğaz) department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About KBB (Kulak Burun Boğaz) Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.