Lung fire should refer to lung fire, and the common symptoms are dry cough without phlegm or phlegm thick and yellow in color, sore throat, and dry stools. Lung fire is mainly manifested as dry cough without phlegm or phlegm thick and yellow, sore throat, dry stools, etc. The tongue is red or dry, the moss is yellow, and the pulse is countless. Commonly used diarrhea white powder plus reduction treatment. Laxative Bai San has the effect of clearing lung heat, stopping cough and calming asthma (stopping cough and calming wheezing). The main treatment of lung heat asthma and cough. Symptoms include wheezing and coughing, steaming heat on the skin, especially during the day, red tongue with yellow fur, and fine pulse (the pulse becomes narrower and finer and the rate is accelerated). It is not suitable for people with wind-cold cough or lung-heat cough. Consult a doctor if you feel unwell. If medication is needed, it should be diagnosed by a doctor and regulated according to the doctor’s instructions.