Infectious lesions in the right lower lobe of the patient’s lung can usually be categorized into viral infections, bacterial infections and Mycobacterium tuberculosis infections, etc. Different treatments should be given according to different types of infections. 1. Viral infection: usually caused by autoimmune deficiency, mainly focusing on anti-viral infection and immunity-improving treatment. Influenza virus can cause lung infection, and anti-influenza virus drugs such as oseltamivir phosphate can be used; cytomegalovirus infection and EBV infection can be treated with ganciclovir. At the same time, in the physical conditions allow, appropriate exercise, more sunshine, help to improve immunity. 2. Bacterial infections: Symptomatic treatment and antibacterial is the mainstay. Penicillin and other antibacterial treatments can be used as prescribed by the doctor to achieve anti-inflammatory effect. At the same time, when the patient has respiratory difficulties, it is necessary to follow the doctor’s instructions to actively give oxygen therapy to alleviate the symptoms. 3. Mycobacterium tuberculosis infection: it is recommended to follow the doctor’s instructions to standardize the use of anti-tuberculosis drugs, such as isoniazid, ethambutol and so on. Infection of the lower lobe of the right lung may also be caused by other pathogens, it is recommended to go to a specialized hospital to clarify the cause of the disease in the next examination and treatment under the guidance of the doctor.