The fact is that the prescription lacks a certain basis, and should not be used blindly. The person with white phlegm is mostly related to wind-cold attacking the lungs or phlegm obstructing the lungs (foul phlegm evil obstructing the function of the lungs). If you want to take traditional Chinese medicine for treatment, you should be guided by the physician under the guidance of diagnosis and treatment, and the commonly used clinical formulas are Huagai San, Er Chen Tang, San Zi Nourishing Relative Soup, and so on. 1. Hua Gai San: mainly composed of Perilla frutescens, ephedra, almonds, Sang Bai Pi, licorice, etc. It has the efficacy of declaring the lungs and relieving epidemiology, stopping cough and expelling phlegm, and is mainly used for treating wind-cold attacking the lungs, which includes chest and diaphragm lumps and fullness (stomach distension), coughing, phlegm unfavorable, and nasal congestion with a heavy voice. 2. Er Chen Tang: mainly composed of hemixia, tangerine red, poria, roasted licorice, etc. It has the efficacy of drying dampness and resolving phlegm (removing phlegm in the body by drying dampness), regulating qi and zhong (regulating the qi of the spleen and stomach to make the functions of the spleen and stomach smooth), and treating dampness-phlegm syndrome, which is characterized by coughing and phlegm, whitish and easy to cluck, nausea and vomiting, plumping in the chest and diaphragm, and heavy and sleepy limbs (limbs weakness and sinking). 3. San Zi Nourishing Relative Soup: mainly composed of white mustard seed, perilla seed and lycopodium, it has the efficacy of warming the lungs and resolving phlegm, lowering the qi and eliminating food, treating phlegm and qi congestion and food stagnation, symptomatic symptoms such as coughing and wheezing, phlegm and chest plumpness, food is difficult to eliminate, white and greasy tongue coating, slippery pulse, and so on. Chinese medicine prescription selection, should also be based on the patient’s own specific symptoms in the physician under the guidance of diagnosis, not blindly use drugs, not to blindly listen to the use of prescription.