Sinus Infection (Sinusitis): Causes, Symptoms & Treatment

Sinusitis is an inflammation of the tissues in your sinuses. It’s usually caused by viruses, but can also be caused by bacteria or allergies.

Sinus Infection (Sinusitis)? Types, Causes, Symptom & Treatment

Sinus Infection (Sinusitis) - Causes, Signs and Various Treatments

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