Why is this science article being written? Acute laryngitis is a pediatric emergency that can be life-threatening if not given adequate vigilance. I have resuscitated children with acute laryngitis and laryngeal obstruction more than once, and every time I think about it, I have palpitations. And many families don’t take it seriously and think that the doctor is scaring them by informing them of the possible risks. Nowadays, many parents believe in Baidu and do not trust the doctor, so let science help help the poor child! Acute laryngitis is common in infants and young children and can occur in any season as an acute diffuse inflammation of the mucous membrane of the larynx. The narrow laryngeal cavity, weak laryngeal cartilage scaffolding, and abundant post-mucosal lymphoid tissue in children make it very easy for edema to occur when there is inflammation, which in turn leads to dyspnea, respiratory distress, and even life-threatening conditions in a short period of time. Laryngitis is characterized by a barking or “hollow” cough (in short, a cough with a different sound than usual, a kind of modified cough), hoarseness, inspiratory laryngeal tinnitus, and laryngeal obstruction. Symptoms are usually mild during the day and worsen at night. Mild laryngeal obstruction is manifested by inspiratory laryngeal tinnitus and dyspnea after activity. Severe laryngeal obstruction manifests as: irritability, pale face, blue lips and toes, round eyes, panic, sweating, suggesting that the child has hypoxia and respiratory distress. Treatment measures: The respiratory tract should be kept open to prevent the aggravation of hypoxia and oxygenation. Control infection, nebulized inhaled corticosteroids such as budesonide to reduce laryngeal edema, intravenous hormone infusion in severe cases, and respiratory support therapy in those with respiratory failure. Tips: Laryngitis has risks, families need to be alert! Laryngitis with laryngeal obstruction manifestations should be immediately to the hospital!