Lung nodules 9mm can be mostly cured by anti-infection treatment if they are caused by inflammation in the lungs; if they are caused by malignant tumors, they are very difficult to be cured. If the lung nodule is said to be caused by infectious diseases such as pneumonia, bronchitis, tuberculosis, etc., anti-infective treatment is needed according to the pathogen during the inflammatory infection stage. Bacterial infections require cephalosporin, amoxicillin, etc., while tuberculosis requires anti-tuberculosis drugs such as isoniazid and rifampicin. Usually the nodules can be significantly reduced or even disappear. If the lung nodules are caused by tumors, the nature of the tumors should be determined by cytology and histology pathology examination. If it is a benign tumor, most of them can be cured through surgical resection; if it is a malignant tumor and the cancer cells have spread, the prognosis is not good, and the patient needs to actively cooperate with radiotherapy and chemotherapy, and undergo surgical resection if necessary. Lung nodule 9mm need to consult the doctor in time, under the guidance of the physician active diagnosis and treatment. The above drugs should be used under the guidance of physicians.