A nose can be constantly blocked due to various reasons including infections like colds, flu, or sinusitis, allergies such as pollen or dust mites, irritants in the air like tobacco smoke and perfume, structural issues like a deviated septum or enlarged turbinates, and chronic inflammation of the nasal lining. Overuse of nasal decongestant sprays, hormonal changes, and other medical conditions can also cause persistent nasal congestion. Sometimes, nasal polyps or even tumors may contribute to one-sided blockage. Some people experience nonallergic rhinitis where the nose is chronically congested without a clear reason. Chronic nasal congestion affects daily activities and may require medical evaluation to determine the exact cause and appropriate treatment.
Common Causes of a Blocked Nose
- Infections: common cold, flu, viral upper respiratory infections, and sinusitis.
- Allergies: seasonal hay fever or all-year allergies like dust mites.
- Structural issues: deviated nasal septum, enlarged turbinates, nasal polyps.
- Irritants: tobacco smoke, perfumes, dust, fumes.
- Overuse of nasal sprays leading to rebound congestion.
- Hormonal changes during pregnancy or puberty.
- Chronic inflammation unrelated to infection or allergy (nonallergic rhinitis).
When to See a Doctor
If nasal congestion persists for weeks or interferes with daily life, it is advisable to consult a healthcare professional for diagnosis and treatment which may include medications, allergy management, or possibly surgery for structural problems.
