1. Ask an experienced respiratory doctor to write a prescription according to your own situation, instruct you on the medication plan during the stabilization period, and adhere to the medication. Regularly (about half a year-1 year) go to the hospital to review the lung function and observe the changes in lung function in order to adjust the medication. 2. Smokers should quit smoking completely and try to avoid passive smoking, and those who have occupational exposure to pneumoconiosis and chemical substances should leave the related environment. Pay attention to the air pollution index in the weather forecast, and reduce going out in severe pollution weather or wear a mask when going out. 3. Increase or decrease clothing in accordance with climate change. 4. Insist on participating in outdoor activities. Such as playing Taijiquan, Badaanjin, Qigong, do abdominal breathing exercises to exercise the diaphragm function. 5.Moderate cold tolerance training, such as insisting on cold water to wash the face, etc. 6.Keep indoor air circulation, regular life and living, and keep a relaxed mood. 7, those who have the conditions can carry out home oxygen therapy, which is beneficial to improve the lack of oxygen, improve the quality of life and extend life. 8, before the arrival of winter can be injected with flu vaccine and pneumonia vaccine to reduce the occurrence of colds and upper respiratory tract infections. Avoid going to crowded places during the flu season. 9.If you have fever, cough, increased dyspnea, increased sputum or thickened sputum color and these symptoms, you should go to the hospital without delay.