If lung cancer patients cough after surgery, they can be treated with cough suppressants. If the post-operative cough is caused by inflammation, anti-inflammatory drugs are also needed for treatment. If the patient is still recovering after surgery, and the cough is caused by the patient’s weakness, inflammation in the lung or the stimulation of the suture, the patient can temporarily take cough and expectorant Chinese medicine, such as Chuanbei Loquat Paste or Halcyon Syrup. In addition to medication, postoperative cough of lung cancer patients should also be treated reasonably in terms of diet, and patients should be given high-calorie and high-protein food as much as possible to strengthen their nutrition.