Sinusitis is an inflammation and bacterial infection of the sinus cavities. It occurs when mucus that normally drains into nasal passages begins collecting in the facial sinuses instead. It is estimated that 35 million people develop sinusitis annually, making it one of the most common health conditions in the United States. The disorder usually lasts about 10 to 14 days.
Chronic sinusitis is a sinus infection that occurs frequently or lasts three months or longer.
The following are the most common symptoms for sinusitis, however, individuals may experience symptoms differently. The symptoms of sinusitis may resemble other upper respiratory conditions or medical problems. Consult a physician for a diagnosis.