Laryngitis is an emergency in otolaryngology, commonly seen in infants and toddlers. Generally, it is caused by acute inflammation that irritates the pharyngeal mucosa, mainly the vocal cords, leading to congestion and edema of the pharyngeal mucosa. Patients may exhibit sudden high fever, with a body temperature above 38°C, severe sore throat, hoarse voice, bark-like cough, and in severe cases, it may cause breathing difficulties or even lead to suffocation and death. Examination with an electronic laryngoscope can reveal severe edema of the bilateral vocal cords and incomplete closure of the glottis. In treatment, laryngitis initially requires symptomatic anti-inflammatory treatment. A routine blood test should be conducted; if there is an increase in white blood cells and neutrophils, a bacterial infection should be considered, and oral administration of cephalosporins or penicillin antibiotics is effective. If lymphocytes are elevated, the patient should receive symptomatic antiviral treatment, which is also effective. Additionally, nebulized inhalation should be used to help reduce local congestion and edema. A bland diet should be maintained, avoiding spicy and irritating foods. Recovery is typically within about a week. (Please take medication under the guidance of a doctor.)