Radiation pneumonia is one of the common complications during and after radiotherapy for lung cancer, esophageal cancer and other chest tumors. The main clinical manifestations are: cough, chest tightness, coughing and fever; patchy shadow is seen on chest X-ray or CT examination. In Chinese medicine, radiation is considered to be the evil of heat and toxicity, and radiation lung injury is the evil of heat and toxicity attacking the lung, resulting in damage to lung yin, resulting in symptoms such as dry mouth and thirst, dry cough without sputum, and low fever. The main treatment is to nourish Yin and dryness, moisten the lung and stop coughing, and the formula can be used to treat with Sha Shen Mai Dong Tang plus or minus. Patients who have the condition can go to the hospital outpatient clinic for personalized treatment according to the patient’s tongue and pulse!