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How do sinus headaches happen?

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Your sinuses are air-filled spaces inside your forehead, cheekbones, and behind the bridge of your nose. When they get inflamed -- usually because of an allergic reaction or an infection -- they swell, make more mucus, and the channels that drain them can get blocked.

The build-up of pressure in your sinuses causes pain that feels like a headache.

From: Sinus Headaches WebMD Medical Reference

SOURCES: American Academy of Otolaryngology-Head and Neck Surgery. Mayo Clinic.

Reviewed by Neil Lava on May 06, 2018

SOURCES: American Academy of Otolaryngology-Head and Neck Surgery. Mayo Clinic.

Reviewed by Neil Lava on May 06, 2018

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What are often mistaken for sinus headaches?

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