Description.
Sinusitis is marked by swollen and inflamed nasal cavities and mucus buildup. Symptoms may include difficulty breathing through the nose, a swollen feeling in the face, and a throbbing frontal headache. Sinusitis symptoms often include drainage of thick yellow/green discharge from the nose or throat; nasal obstruction, pain, tenderness or swelling around the eyes, cheeks, nose or forehead; aching in the upper teeth and jaw; a reduced sense of smell and taste; and a cough that may be worse at night.
Causes.
Swelling of the mucous membranes prevents the mucus from draining normally, which causes facial pain and sinusitis symptoms. Sinusitis may be caused by viral infection, bacterial infection, fungal infection, allergies, nasal polyps or tumors, deviated nasal septum, tooth infection, enlarged or infected adenoids, and other medical conditions.
Complications.
Sinusitis may lead to meningitis if the infection spreads to the lining of the brain. Blood clots in the veins surrounding the sinuses can lead to an aneurysm, putting the patient at risk for stroke. If the infection spreads to the eye socket, it can reduce vision or even cause blindness.
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