Yellowish green sputum may be caused by Pseudomonas aeruginosa infection of the respiratory tract, such as bronchitis, pneumonia, etc. It can be treated with antibiotics, such as amoxicillin, and expectorants, such as aminoglutethimide, in conjunction with the cause of the disease. Usually when yellow-green sputum appears, it is usually necessary to consult the doctor in time, and cooperate with the physician to do blood routine, chest X-ray or CT, C-reactive protein and other tests to clarify whether there is a respiratory infection, such as bronchitis, pneumonia and so on. After the respiratory tract infection is identified, sputum culture and drug sensitivity test should be combined to select sensitive antibiotics for treatment. Clinically, yellowish-green sputum may be seen in Pseudomonas aeruginosa infection, and antibiotics can be chosen empirically to treat the infection before the results of the drug sensitivity test are available. Usually, the antibiotics that can be used are ceftazidime and amikacin. Expectorants such as Ambroxol or Bromhexine may also be used in patients who have a lot of sputum that is difficult to cough up. Coughing up yellowish-green sputum may also be due to other reasons, and it is recommended to consult a doctor in time to clarify the cause of the disease and then treat it. Patients should also take a light diet, drink plenty of fluids, and exercise moderately, and quit smoking if they have a history of smoking, in order to help their recovery. The above drugs should be used under the guidance of a physician.