Laryngism is a convulsive narrowing of the glottis, which occurs most often in children. After crying (in infants) and coughing, whistling, noisy inhalation appears as a symptom of difficulty breathing in through the narrowed glottis. The child's face turns pale, the head is thrown back, the neck muscles are tense, the mouth is open. The attack is accompanied by a sluggish reaction of the pupils to light, a weak pulse, tension of the abdominal muscles, cold sweat. Laryngospasm begins and stops unexpectedly. Gradually breathing becomes normal. In adults, laryngospasm sometimes occurs after lubrication of the larynx with lapis, menthol solution, from inhalation of harmful gases, sometimes ammonia, and food crumbs from the larynx. Sometimes laryngospasm is the first manifestation of dorsal mediastinum . The forecast is favorable. Laryngospasm in children passes independently with age. Treatment: ingestion of a 0.5% solution of potassium bromide (for children), 1 tsp, 2 times a day. To stop an attack, you should spray your face with cold water, make an enema from chloral hydrate (0.3–0.5 g per cup of water).