Dryness, tingling and foreign body sensation in the throat are the clinical symptoms of acute laryngitis. Acute laryngitis (acutelaryngitis) is an acute catarrhal inflammation of the laryngeal mucosa, often secondary to acute rhinitis, sinusitis, acute pharyngitis, part of the entire upper respiratory tract infections, can also occur alone. Acute laryngitis can also be caused by shouting, excessive use of the voice, and violent coughing. If it occurs in children, the condition is more serious. The causes of dry and itchy throat: 1, lower body resistance: after cold and flu, the whole body resistance is lowered, which can induce acute laryngitis. At the beginning, it is mostly viral infection, and then bacteria take advantage of the situation (which is common with pneumococcus, influenza bacillus, hemolytic streptococcus, etc.). 2, occupational factors: actors, teachers, salesmen and other excessive use of the voice; factories and mines inhale too much productive dust or harmful gases (such as chlorine, ammonia, bromine, iodine, nitric acid, sulfuric acid, pesticides, etc.). 3, acute infectious diseases: this disease is also often combined with measles, whooping cough, influenza, scarlet fever and other acute infectious diseases. 4, trauma: laryngeal foreign body irritation, injury to inspection instruments (such as direct laryngoscopy, tracheoscopy when bruised).