The duration of fever in acute laryngitis is related to the specific condition and usually resolves in about 1 week. Acute laryngitis is often caused by viral infection of acute diffuse inflammation of the larynx, fever, hoarseness, sputum, cough and other symptoms, pediatric patients due to anatomical factors will occur laryngeal tinnitus, dyspnea and other symptoms. The peak of symptoms is 3-4 days after the onset of the disease, and can be relieved in about 1 week after treatment. Acute laryngitis needs to keep the respiratory tract open, give antibiotic treatment, commonly used macrolides, cephalosporins and so on. Adrenocorticotropic hormone can reduce laryngeal edema. Acetaminophen can be used to reduce fever above 38.5℃. Acute laryngitis has a rapid onset and rapid progression, and should be seen immediately to clarify the cause and severity of the condition, and standardized treatment under the guidance of a doctor.