Sinus headaches
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Sinus headaches
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.
https://www.webmd.com
Sinus headaches
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