Infants with laryngeal edema, laryngeal spasm or increased laryngeal secretions are prone to such coughs, which mainly cause narrowing and blockage of the larynx, affecting the vocal folds and making such sounds. In the clinical more common due to acute laryngitis, is a kind of laryngeal mucosa and vocal folds affected by the non-specific acute inflammation, the typical symptoms of inhalation of dyspnea, barking cough, but also easily lead to severe hypoxia, life-threatening, need to send the child to the hospital as soon as possible for examination. If necessary, tracheotomy is also needed, and treated with effective antimicrobial drugs, the more sensitive drugs are penicillins and cephalosporins, but also glucocorticoid drugs can be used to control the inflammatory reaction.