If a baby develops laryngeal edema, if the child’s symptoms are not very obvious and do not affect breathing or eating, the first step is to apply medication for conservative treatment. Cefaclor granules or azithromycin dry suspension are commonly used in clinical practice. If the child’s symptoms do not improve or get progressively worse after active anti-inflammatory and swelling treatment, it is necessary to seek further medical consultation at the hospital urgently. Because the mucous membrane in the child’s larynx is very loose, the condition changes especially quickly, and the laryngeal edema may become asphyxiated to a certain extent. After arriving at the hospital, the child should be given a large amount of hormone shock treatment, and can consider intramuscular dexamethasone or intravenous methylprednisolone injection, and should be allowed to reduce the occurrence of colds and laryngeal edema in life.