Chinese medicine believes that after fire, it will fry the body’s body fluids, which will turn yellow or green, if green snot is considered to be a cold with fire, that is, wind-heat cold or phlegm-heat cold. Most patients with this kind of cold will have dry mouth and thirst in addition to runny nose, and the patient will have fever, sweating, heartburn, dry stools, difficulty in sleeping and other symptoms. These colds can be treated with fire-removing herbs, such as Shuanghuanglian or Qingkailing, both of which are good for colds with green snot.