A small amount of inflammation in the right lung may be an acute infectious lesion or an old lesion, the former usually requires anti-infective treatment, the latter is usually observed. A small amount of inflammation of the right lung, if accompanied by coughing, coughing up sputum and other symptoms, most of the bacteria caused by acute infection, white blood cells, neutrophil ratio, C-reactive protein, calcitonin is usually elevated, usually take amoxicillin, cefaclor and other antibiotics to treat, coughing up sputum is not easy to discharge, it is recommended that the addition of aminoglutethimide, acetylcysteine, such as expectorant and sputum solubilizing treatment. In addition, viral, fungal, tuberculosis and other infections can not be ruled out, and should be treated with oseltamivir, voriconazole, isoniazid and other drugs to treat the cause. A small inflammation of the right lung, if the density of the lesion is relatively high, surrounded by fibrous cord-like shadow, may be chronic organic inflammation or old tuberculosis, if there are no clinical symptoms, usually do not need treatment, be observed, and regular review. If there is no clinical symptom, observation and regular review are usually not needed. If there is a little inflammation in the right lung, we need to be alert to the possibility of obstructive pneumonia caused by lung cancer, etc. It is recommended to consult the doctor in time, complete the relevant laboratory tests and make a comprehensive assessment, and follow the doctor’s instructions for reasonable and standardized treatment.