Acute laryngitis, an acute inflammatory disease of the laryngeal mucosa and vocal cords, is a common acute infectious disease of the respiratory tract, accounting for 1% to 2% of otorhinolaryngological diseases. It often occurs in winter and spring, with a higher incidence in men than in women, and is becoming more common in children, but the condition changes rapidly in children and requires special attention. Acute laryngitis is caused by various triggers such as tobacco and alcohol stimulation, cold, bacterial and viral infections, inhalation of excessive harmful gases or dust, regular late nights, excessive use of voice, improper pronunciation, consumption of spicy and irritating foods, and dry air. Typical symptoms: 1. Hoarseness. It is caused by congestion and edema of the mucous membrane of the vocal cords, and can be manifested as hoarseness, difficulty in pronunciation or loss of voice in adults, or barking in children. 2. Pain in the throat is obvious. Adults may experience discomfort, pain, dryness and foreign body sensation in the larynx. 3. Dry and empty cough. 4. Difficulty in breathing. The mucous membrane of the laryngeal cavity is congested and edematous, causing difficulty in breathing. Adults tolerate it well and this occurs relatively rarely. In children, it can cause respiratory obstruction for a short period of time, which is seriously life-threatening and should be treated immediately once it occurs. Once laryngitis has occurred, it requires vocal rest, elimination of causative factors, early oral and sedative glucocorticoids with nebulized inhalation.