Comment on Zhongjing's Formula for Treating Cough due to Abnormal Rise of Qi

ZHANG Zhongjing had divided cough due to abnormal rise of qi into the following types: syndrome of exterior and interior， syndrome of cold and heat， syndrome of deficiency and excess. For internal disease mainly caused by cold fluid， the treatment should warm the lung to reduce watery phlegm， and stop cough to relieve asthma. For prolonged diseased lead to heat syndrome， herbs that clearing heat and purging fire and eliminating toxin should be added on the basis of removing dampness. For external disease pertaining to dual exterior and interior syndrome， the treatment should induce sweating to relieve the exterior. Meanwhile， herbs should be combined according to diseases conditions， such as ventilating the lung to suppress cough herbs， warming the lung to reduce watery phlegm herbs， resolving phlegm herbs， releasing the exterior and harmonizing the nutritive and defensive levels herbs， clearing heat herbs， restraining the lung to suppress cough herbs and purging lung to alleviating water retention herbs. On the basis of Zhong-jing's formula， the later physicians also combined with invigorating qi and nourishing blood herbs， tonifying kidney and suppress asthma herbs.