Sinus Headache (cont.)
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What is a sinus headache?
A sinus headache is the result of inflammation and a build-up of pressure within the sinuses of the skull. The sinuses are cavities or pockets located within the bones of the skull. In addition to contributing to the strength and stability of the skull, the sinuses help to humidify and filter air.
Where are the sinuses located, and what do they look like?
The sinuses are named according to their location in the skull bones:
The sinuses are lined by mucous membranes that secrete fluid and are connected to the nasal cavity by small channels or ducts. The sinuses are sometimes collectively referred to as the paranasal sinuses because of their proximity to the nose.
Inflammation due to any cause (most likely due to irritation or infection) can cause a buildup of fluid and increased sinus pressure, causing the typical symptoms of a sinus headache.
Medically Reviewed by a Doctor on 11/16/2015
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