In recent times, there are more patients with colds in outpatient clinics, and most of them take cold medicine or fever-reducing medicines at home by themselves for 3-5 days, and then slowly get well. However, there are some patients who have fever for a longer period of time, or repeatedly, coughing significantly or chest tightness and wheezing, we should be vigilant about the occurrence of pneumonia, and promptly go to the regular hospital to diagnose and treat the disease, do not delay the condition. The symptoms of bacterial pneumonia are highly variable and can be mild or severe, depending on the state of the pathogen and the host. Common symptoms are coughing, coughing up sputum, or aggravation of existing respiratory symptoms with purulent or bloody sputum, with or without chest pain. Dyspnea and respiratory distress may be present if the lesion is extensive. Most patients have fever. Early pulmonary signs are unremarkable, and in severe cases there may be increased respiratory rate, nasal flaring, and cyanosis. There are typical signs of solid lung changes, such as turbidity to percussion, enhanced palpation tremor and bronchial breath sounds, etc. Wet rhonchi can also be heard. In complicated pleural effusion, the affected side of the chest has turbidity on percussion, decreased palpatory tremor, and decreased respiratory sounds. Pulmonary gram-positive bacterial infection is characterized by severe systemic symptoms, chills, fever, significant increase in peripheral blood leukocytes, large short-term changes in lung lesions, rapid progression, and a high rate of positive blood cultures. The common characteristics of pulmonary gram-negative bacterial infections are solid lung lesions or lesion fusion, tissue necrosis is easy to form multiple abscesses, often involving the lower lobes of both lungs; if the wave of the pleura can cause pleural exudate or pus chest. Pneumonia caused by atypical pathogens has an insidious onset, often with an incubation period of 10-20 days. Symptoms are similar to those of typical bacterial pneumonia, but the most prominent respiratory symptom is paroxysmal irritating choking cough, occasionally with a small amount of mucus. Extrapulmonary manifestations are common, mainly fever, malaise, sore throat, headache, loss of appetite, diarrhea, myalgia, and earache. The cough is mostly dry and prolonged, occasionally accompanied by retrosternal pain. Except for Legionella, the clinical manifestations of atypical pneumonia are usually mild and may resolve spontaneously. Physical examination reveals pharyngeal congestion, enlarged cervical lymph nodes, and pulmonary signs are often asymmetric with the degree of lung disease, or there may be no obvious signs. Complications of bacterial pneumonia have been rare in recent years, a few patients can be complicated by pyothorax, and pulmonary abscess, pneumothorax, and pyothorax can also occur in Staphylococcus aureus infection. Bacteria enter the blood circulation through lymphatic vessels and thoracic ducts, which can cause meningitis, pericarditis, endocarditis, arthritis, otitis media and other extrapulmonary infections. Infectious shock can also occur when the patient is severely infected or has low immunity, which is characterized by lowered blood pressure, cold extremities, excessive sweating, cyanosis, tachycardia, arrhythmia, and so on. Legionella pneumophila pneumonia is often accompanied by severe hyponatremia, and some patients suffer from acute renal failure, shock and DIC. Different pneumonia, clinical treatment methods are different, not just a drop of anti-inflammatory drugs this simple, early application of traditional Chinese medicine, will be more quickly absorbed, reduce the use of drugs, reduce complications.