Sinusitis is an inflammation of nasal sinuses. Sinuses are the air-filled hollow cavities around nose and nasal passages. When these passages become inflamed, fluid may accumulate and interfere with normal drainage of mucus in the sinuses.
The sinusitis is of two types:
Acute Sinusitis
Chronic Sinusitis
Acute Sinusitis develops when the mucous membranes of your upper respiratory tract — [...]