There are two possible causes for coughing up sputum all the time: one is an infection in the lungs or bronchial tubes; the other is a condition of bronchial dilatation. Both of these diseases can be identified by chest CT. If the coughing is caused by infection, it is better to do sputum culture and drug sensitivity test to see which bacterial infection is caused by the sputum culture and decide the specific antibiotic treatment based on the results of the drug sensitivity test. In the case of bronchiectasis, long-term maintenance and treatment are very important, first of all, to avoid infections, increase resistance and avoid colds. In addition, every morning when you get up, it is recommended to adopt a “frog position”, let family members or friends help pat the back for 5-10 minutes, and then cough gently to cough out the phlegm accumulated in the bronchi, which is the most effective measure to prevent further progress of bronchiectasis.