One of the effective means of lung cancer treatment is radiation therapy. Especially for central lung cancer, symptoms such as cough and shortness of breath often occur after radiation therapy, which are mainly caused by radiation therapy to the lung, especially to the hilar and mediastinal areas, which produces radioactive pulmonary fibrosis several months after sufficient irradiation. The following care methods can relieve the above symptoms, please use them under the guidance of doctors. 1.Actively carry out psychological care Make the patient maintain a good mental state, establish confidence to overcome the disease, and have the preparation to fight against the disease for a long time. 2.Closely observe the number and depth of breathing If severe respiratory distress occurs, give oxygen immediately, and administer prednisone or dexamethasone intravenously, etc. 3.Pay attention to the change of body temperature Mild fever can be treated with warm water bath, massage on Yongquan point, Hegu point, Quchi point, etc. In severe cases, Chaihu injection, perforated suuning, Qingkailing injection, prednisone, dexamethasone, etc. 4, pay attention to the change of cough and mix with the symptoms If dry cough without sputum or little sputum is difficult to be coughing, you can be decocted with water to drink as tea; or take wormwood duck, or water chestnut, jellyfish skin decoction several times a day; or snake bile and Chuanbei liquid, yu zhu paste several times a day. For dry cough with difficulty sleeping, codeine 0.3g can be taken orally. If the cough has phlegm difficult to get out, can pat the patient’s back, from the bottom up to help drain the phlegm, oral licorice combination, thunder grass vegetarian tablets, the must be equal; heavy cases can be aspirated, or tracheotomy; if accompanied by croup in the throat, can use aminophylline, dexamethasone, etc. 5.Keep the air fresh The room should be clean and have a certain temperature, generally 65% is better. 6, smoking patients must quit smoking Cigarettes within the chemical substances are mainly dry tobacco, but is chemically processed and a lot of added ingredients. Cigarette smoke contains about 4,000 kinds of chemicals, many of which are toxic substances, causing mutagenic substances and thousands of carcinogenic substances. Smoking is one of the major causes of lung cancer.