Left upper lung nodule 1.3 cm medication is generally speaking not, because 1.3 cm benign nodule or malignant nodule medication generally can not make the nodule disappear, the vast majority of the expected results can not be achieved. 1. benign nodules 1.3 cm: generally for lung infection, dust or tuberculosis and other causes of abnormal proliferation of lung tissue granulomas or congenital benign tumors of the lungs, taking medication may make the nodules around the inflammation and edema subside, the nodules are slightly reduced but will not disappear. 2. Malignant nodules 1.3 cm: malignant nodules such as primary lung cancer, lung metastases, etc. given oral chemotherapy and other drugs, the majority of patients with malignant nodules can be effective, but generally will not disappear, generally can not be cured. In a small number of patients with malignant nodules, lung nodules can disappear after oral chemotherapy and other drugs are given, but they are prone to recurrence. Whether the left upper lung nodule 1.3 cm is treated with medication, patients are advised to go to the hospital in time for further consultation and diagnosis.