sinusitis

Sinusitis is an inflammation of the sinuses and nasal passages. Sinusitis can be categorized as chronic or acute. Acute sinusitis usually lasts less than 8 weeks or occurs no more than 3 times per year. Medications are usually effective against acute sinusitis. Chronic sinusitis, however, lasts longer than 8 weeks or occurs more than 4 times per year. Sinusitis can be caused by allergens, viral infections, pollutants, and fungi. Computed tomography is the imaging modality of choice to view the sinuses. The main goals in treating a sinus infection or sinusitis involve reducing the swelling in the nasal passages and sinuses, getting rid of the infection, adaquate drainage from the sinuses, and maintaining open sinuses.