The appearance of green sputum indicates a respiratory infection with Pseudomonas aeruginosa, also known as Pseudomonas aeruginosa, which requires active treatment with antibiotics, preferably intravenous drip treatment with antibiotics for better results, and hospitalization is safer at this time. It can be treated with beta-lactam antibiotics, such as imipenem, ceftazidime, piperacillin, or monocyclic aminoglutethimide, which are all more effective. You can also use aminoglycoside antibiotics for treatment, such as amikacin or tobramycin, which are more effective for Pseudomonas aeruginosa Fluoroquinolones such as ciprofloxacin or ofloxacin are also more effective for Pseudomonas aeruginosa. If there is no allergy to cephalosporin antibiotics, cefoperazone or cefotaxime can be used for treatment, which is more effective and has fewer side effects. In addition, for green sputum, you need to use cough expectorant drugs, such as pulmonary cough combination.