Pediatric laryngeal edema is often caused by acute laryngitis, can be caused by viral or bacterial infections and other pathogenic microorganisms, can also be caused by allergies, can appear dyspnea, inspiratory triple concave sign, barking cough, metallic cough, mental irritability, etc., the first aid measures are as follows: 1, through the intravenous drip or oral glucocorticoids, for example, can be used to dexamethasone infusion; 2, inhalation of budesonide 2mg nebulizer; 3, if the above treatment of the child is still dyspnea, hoarseness, in the face during the calm cyanosis, etc., in addition to the oxygen to be considered in addition to the tracheotomy or tracheal intubation.