The Three Character Classic of Medicine – Cough: “Coughing is not only in the lungs, but also not separated from them.” External sensation is based on dispelling evil and promoting the lung, while internal injury is based on regulating the internal organs, qi and blood. External cough 1. Wind-cold cough Treatment: dispel wind and cold, promote the lung and relieve cough. Remedy: Sanjiao Tang combined with Stop Coughing San plus or minus. 2. Wind-heat cough Treatment: draining wind and clearing heat, promoting the lung and resolving phlegm. Remedy: Mulberry-Chrysanthemum Drink plus or minus. 3. Wind-dry cough Treatment: Drain wind and clear lung, moisten dryness and stop cough. Remedy: Mulberry and apricot soup with addition and subtraction. Internal injury cough 1. Phlegm and dampness in the lung Treatment: Strengthening the spleen and drying dampness, resolving phlegm and relieving cough. Treatment: Strengthening the spleen and drying dampness, resolving phlegm and relieving cough. 2. Phlegm-heat stagnating in the lung Treatment: clearing heat and purging the lung, resolving phlegm and relieving cough. Remedy: Clearing the lung and resolving phlegm with addition and subtraction. 3, Liver fire offending the lung Treatment: clearing the lung, pacifying the liver, subduing Qi and lowering fire. Remedy: Diabai San combined with Dai Clam San plus or minus. 4. Deficiency of lung yin. Treatment: nourish yin and moisten the lung, stop cough and resolve phlegm. Remedy: Sha Shen Mai Men Dong Tang plus or minus.