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"Sinusitis"

By Kathleen MacNaughton, R.N., About.com

Updated: February 29, 2008

About.com Health's Disease and Condition content is reviewed by Sanja Jelic, MD

Photo of sinuses and sinusitis courtesy of A.D.A.M.

Sinusitis

A.D.A.M.

Definition: Sinusitis is an inflammation of the sinuses. Your sinuses are hollow, air-filled spaces in the bones around your forehead, cheeks, and eyes. The risk of getting sinusitis increases when you also have allergies and asthma. It occurs from infection or allergies.

Learn about other related conditions to asthma

Sources: Asthma & Allergy Foundation of America, Medline Plus

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