Milled glass nodules, or ground glass nodules of the lungs, usually need to be treated according to the cause, and common causes include pneumonia, tuberculosis, and lung cancer. Anti-inflammatory drugs are ineffective for lung cancer patients. 1. Pneumonia: it is usually caused by pathogen infection due to patients’ decreased immunity, which will lead to symptoms such as dyspnea, fever, cough, etc. It can be treated with medicines such as amoxicillin, levofloxacin, azithromycin, etc. under the guidance of doctors. 2. Tuberculosis: generally due to Mycobacterium tuberculosis infection, coughing, sputum, emaciation, low fever, night sweats and other symptoms, should be under the guidance of the doctor to use rifampicin, ethambutol, isoniazid, pyrazinamide and other drugs such as anti-tuberculosis treatment. 3. Lung cancer: generally due to smoking, air pollution, ionizing radiation, etc. Lung cancer has no obvious symptoms in the early stage, but in the later stage, chest pain, cough, sputum, dyspnea, hemoptysis and other symptoms may appear. If detected early, surgery is generally preferred. If the chance of surgery is lost, radiotherapy, chemotherapy, targeted therapy, etc. should be carried out according to doctor’s instructions, and anti-inflammatory drugs are ineffective. All of the above drugs should be taken under the guidance of a physician, and it is recommended that patients with ground-glass nodules go to the hospital for examination and treatment in a timely manner.