Ear-piercing bark-like cough is common in pertussis syndrome, acute infectious laryngitis, acute epiglottitis, acute bronchitis and other diseases. 1. Pertussis syndrome: most common in young infants, for paroxysmal spasmodic cough with red or blue, day light and night heavy without fever, lung signs are not obvious. 2. Acute infectious laryngitis: acute diffuse inflammation of the laryngeal mucosa, characterized by barking cough, hoarseness, laryngeal tinnitus, inspiratory dyspnea, mostly in winter and spring, common in infants and young children. 3. Acute epiglottitis: the main clinical manifestations are fever, hoarseness, spasmodic cough, often accompanied by dyspnea. 4. Acute bronchitis: episodes of compression of the pharynx leading to spasmodic cough, fever, hoarseness with dyspnea, adults and children can be onset. Ear-piercing barking-like cough may also be other causes, it is recommended that patients go to the regular hospital respiratory department or pediatrics in a timely manner.