Lung cysts in the elderly need to be treated according to their causes, such as bad living habits, parasitic infection, bacterial infection, malignant tumor, etc. After clear diagnosis, general treatment, medication, surgery, etc. will be taken in combination with their nature. 1. Bad life habits: long-term smoking may cause lung cysts in the elderly. This phenomenon needs to quit smoking in time, avoid smoking, at the same time to develop good living habits, if it is a benign lesion, you can follow up regularly, without special treatment. 2. Parasitic infections: lung cysts in the elderly may also be caused by parasitic infections, which need to be treated against parasites, such as albendazole, and if the cysts are large and susceptible to infections, surgical resection may be an option. 3. Bacterial infection: lung cysts in the elderly caused by bacterial infection can be treated with antibiotics, such as cefdinir and azithromycin. If the cysts are small and asymptomatic, they can be followed up on a regular basis and do not require any special treatment, and if the cysts are large, surgical resection can be taken. 4. Malignant tumors: lung cysts in the elderly appear malignant changes, resulting in thickening of the cyst wall, causing lung cancer, which requires surgical resection, postoperative pathological examination, if necessary, with chemotherapy, radiotherapy. Lung cysts in the elderly need to be treated according to the specific causes, after the symptoms, it is recommended to go to the hospital in a timely manner to improve the examination, follow the doctor’s instructions to take standardized treatment, do not use drugs privately, so as not to lead to adverse consequences.