If you suffer from chronic sinusitis - a condition that affects more than 10 percent of the U.S. population - a stuffy nose and postnasal drip may be the least of your worries. Research has uncovered ...

Sinusitis occurs as a result of obstruction of the osteomeatal unit, which is located in the vicinity of the maxillary sinus ostium (Fig. 1). Because of obstruction, mucus accumulates inside the ...