Coughing and coughing up thick green sputum is clinically common in respiratory system inflammation caused by Pseudomonas aeruginosa infection, such as bronchitis, pneumonia and so on. At this time, the main symptomatic treatment and etiological treatment, anti-Pseudomonas aeruginosa drugs can choose gentamicin, cefoperazone, ceftazidime, cefpirome and piperacillin and other drugs. They can be given orally or by intravenous drip. In addition, nebulized inhalation therapy can be chosen to enhance sputum expulsion and facilitate infection control, such as nebulization with aminoglutethimide and chymotrypsin. Expectorant and phlegmolytic drugs such as carbocysteine oral solution, aminoglutethimide syrup, myrtle oil, and snake gall Chuanbei liquid can also be chosen.