Signs of improvement of pneumonia include decrease or return to normal temperature, improvement of cough and sputum, gradual decrease or return to normal of white blood cells, and absorption of lesions on chest X-ray or CT. Typical signs of pneumonia are chills, fever, history of upper respiratory tract infection, cough, sputum or further aggravation of existing respiratory tract infection symptoms, sputum containing pus, with or without chest pain. Patients with large lesions may have dyspnea and cyanosis. The development of the disease should be analyzed and evaluated 48-72 hours after antibiotic treatment. Signs of improvement include a decrease or return to normal temperature, improvement of cough and sputum, a gradual decrease or return to normal of white blood cells, and absorption of the lesion on chest X-ray or CT. Pneumonia patients are advised to consult a doctor in a timely manner and be treated actively under the guidance of a physician.