Lung carbuncle is characterized by cough, chest pain, fever, vomiting and foul-smelling sputum, which is equivalent to lung abscess, bronchial dilatation, suppurative pneumonia and lung gangrene nowadays. According to the different stages of the disease and clinical manifestations, carbuncle can be divided into four stages: initial stage, carbuncle stage, pus stage and recovery stage. In the early stage, the symptoms are fever, slight cold (fear of cold), cough, mucus sputum or mucus-purulent sputum, sputum gradually more, chest pain, dry mouth and nose; cough and spit turbid sputum, yellowish green throat fishy taste; pus stage, spit a lot of pus and blood sputum, hemoptysis; recovery stage, spit less pus and blood, and all the symptoms are alleviated. The discomfort of timely consultation, under the guidance of the doctor standardized treatment, do not unauthorized use of drugs.