Multiple nodules in the right lung may be caused by pulmonary nodular disease, bacterial infection, tuberculosis and metastatic cancer, etc. Symptomatic treatment should be taken according to the cause. 1. Pulmonary tuberculosis: Pulmonary tuberculosis can lead to the symptoms of multiple small nodules on the right lung. 30%~70% of patients with pulmonary tuberculosis do not need any treatment, but for patients with progressive deterioration of lung function and involvement of extrapulmonary organs, they can be treated with drugs such as dexamethasone, methotrexate, infliximab, adalimumab and so on according to doctors’ instructions. 2. Bacterial infections: bacterial infections can lead to multiple inflammatory nodular lesions in the lungs of patients, these patients should be treated for the pathogenic microorganisms of the infection, and can be treated with penicillin, azithromycin and other drugs as prescribed by the doctor. 3. Tuberculosis: patients with tuberculosis may also have the symptom of multiple small nodules in right lung, and these patients should follow the doctor’s instruction to use anti-tuberculosis drugs, such as isoniazid, rifampicin, pyrazinamide, ethambutol, streptomycin and so on, at an early stage and in a regular manner, throughout the whole course of the disease and in appropriate dosage and combination. 4. Lung metastatic cancer: lung metastatic cancer can also present the symptom of multiple small nodules in the right lung, and the treatment can be chemotherapy, radiotherapy, targeted therapy or immunotherapy according to the primary tumor program. If multiple small nodules in the right lung are found in the examination, it is recommended to consult the doctor in time, and symptomatic treatment should be carried out after clarifying the cause of the disease, and the medicines should be used in strict accordance with the prescription of the doctor.