Infectious sinusitis is an infection of the lining of one or more of the
sinus cavities in the facial bones around your nose. Sinusitis can make life miserable, causing tenderness in your face, aching behind your eyes and difficulty breathing through your nose.
Most cases of sinusitis are acute sinusitis, which lasts less than 4 weeks. If the signs and symptoms of sinusitis last more than 12 weeks, or if you have frequent bouts of sinusitis, you may have chronic sinusitis.
Chronic sinusitis is one of the most common chronic diseases in the United States, affecting an estimated 33 million people each year