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Sinusitis
- ... and cartilage and lined with a mucous membrane. Sinusitis occurs when the membranes becomes inflamed and painful, ... a result of a blocked sinus opening. Chronic sinusitis is often caused by inflammation and blockage due ...
- Sinusitis refers to inflammation of the sinus cavities, which are moist, hollow spaces in the bones of ...
- ... lining of the nose, allergic rhinitis, colds, or sinusitis. Other causes can include nasal obstruction such as ...