Chinese medicine generally believes that white phlegm represents cold and dampness, and coughing up white phlegm may be caused by external infection or internal injury. Externally induced cold and dampness can be treated with Xiao Qing Long Granules, etc. Internally induced cold and dampness can be treated with Liu Jun Zi Pill, etc. Patients with coughing and spitting white phlegm should go to the hospital in time and take medication under the guidance of the doctor. 1. External cold and dampness, because of the external cold and dampness evil, the evil attack on the surface of the muscle, the lung qi loss of declaring and lowering and caused by coughing and sputum. The available Xiaoqinglong Granules can relieve the surface of the drink, cough and asthma (stop coughing, calm wheezing). This medicine is mainly used to treat coughing, sputum, coldness (fear of cold) and fever. It is not suitable for those with internal heat cough and deficiency asthma. 2. Cold and dampness arising internally, the cause of the disease is cold and dampness trapped internally and damaging spleen yang, or spleen and kidney yang deficiency (deficiency of yang qi in the spleen and kidneys) and cold and dampness stopping internally. Spleen qi deficiency, loss of transmission and distribution, water and dampness coalesce into phlegm, which is transported to the lungs, and the lung qi goes upward, thus coughing up phlegm. Six Gentlemen Zi can be used to tonify the spleen, benefit qi, dry dampness and resolve phlegm (to dispel phlegm in the body with drugs that dry dampness). This drug is mainly used for treating weak spleen and stomach, not eating much, deficiency of qi and phlegm, abdominal distension and diarrhea. Note that pregnant women should not take it. If symptoms such as coughing and spitting up white phlegm occur, it is recommended to seek professional medical help in the hospital and follow the doctor’s instructions for treatment.