Chronic pharyngitis, as a chronic inflammation of upper respirator congestion, features mucous membrane of pharynx and adenoid diffuse inflammation . the course of this disease can linger long and defies treatment 慢性咽炎為咽部黏膜、黏膜下及淋巴組織的彌漫性炎癥,常為上呼吸道慢性炎癥的一部分,有時病程很長,癥狀頑固,不易治愈。