5 easy steps to prevent sinusitis, from Harvard Women's Health Watch
When the sinuses become blocked, viruses or bacteria in the nose can become trapped in a pool of mucus with nowhere to go. The germs can grow out of control, causing infection and inflammation. The result: swelling, which causes headache and facial pain; mucus buildup, which produces congestion; and an influx of white blood cells to fight the infection, which thickens and tints the mucus. Other symptoms may include loss of smell or taste, bad breath, fever, and fullness in the ears.
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