Acute infectious laryngitis is a common acute respiratory disease in children, mainly caused by acute laryngeal edema under pathogenic bacterial infection. The child mainly presents with sudden hoarseness, barking cough with phlegm in the throat and fever. In the treatment, according to the pathogenic bacteria causing acute laryngitis, such as viruses, bacteria, mycoplasma, the corresponding antiviral drugs and cephalosporin, penicillin antibiotics, or macrolide antibiotics are given for the corresponding pathogenic bacteria for further treatment, together with nebulizer inhalation treatment, can quickly reduce the symptoms of laryngeal edema, can relieve the symptoms of pediatric barking cough, can relieve the child’s breathing wheezing suffocating, uncomfortable performance. According to the symptoms of coughing and sputum, the child can be given oral medication to relieve phlegm and cough, and severe cases usually require intravenous infusion treatment.