Eery year, nearly 37 million Americans suffer from the sinus pressure, nasal congestion, cough and postnasal drip that accompany sinusitis.

• 每年有近三千七百万美国人饱受鼻窦压迫、鼻腔阻塞、咳嗽和后鼻滴涕之苦，这些症状均是伴随着鼻窦炎而来。