肝升肺降之“龙虎回环”是维持人体气机条达顺畅的关键，肝肺两脏气机升降出入失常则人体气机紊乱，百病由生。通过探讨肺、肝及肝肺气机升降与胃食管反流病（GERD）的相关性，总结GERD的病机为肝升太过、肺降不及致脾胃不和、胃气上逆。因此，治疗GERD应以平肝降肺、健脾和胃为原则，处方可选枳实薤白桂枝汤合瓜蒌薤白半夏汤加味。

The “dragon-tiger loop” which is the key to maintaining the smooth qi movement of human body is formed by ascending movement of liver qi and descending movement of lung qi. The abnormal ascending and descending movement of liver qi and lung qi will cause the disorder of qi movement of human body,and then lead to all diseases. By discussing the correlation between liver and gastroesophageal reflux disease(GERD),the correlation between lung and GERD,and the correlation between ascending and descending movement of liver qi and lung qi and GERD,the pathogenesis of GERD was summarized as excessive ascending movement of liver qi and insufficient descending movement of lung qi leading to disharmony between spleen and stomach,and then causing stomach qi ascending counterflow. Therefore,the treatment of GERD should be based on the principle of pacifying liver and descending lung,invigorating spleen and harmonizing stomach,and Zhishi Xiebai Guizhi Decoction （枳实薤白桂枝汤 ） combined with Gualou Xiebai Banxia Decoction（瓜蒌薤白半夏汤） is appropriate for the disease.