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Sinusitis involves inflammation of the paranasal sinuses. It can be caused by viruses, allergies, or autoimmune reactions, leading to mucus buildup and irritation. Symptoms of sinusitis include nasal discharge, facial pain, sore throat, and a reduced sense of smell. While it often resolves without intervention, severe or persistent symptoms warrant medical consultation. Treatments range from home remedies like nasal irrigation and steam inhalation to medical interventions such as antibiotics for bacterial infections or surgery for chronic cases. Prevention includes good hygiene, avoiding irritants, and managing allergies. (责任编辑：) |