Pertussis (whooping cough) and allergic cough are different. Firstly, pertussis is an acute respiratory infectious disease caused by Bordetella pertussis. Its symptoms include paroxysmal and frequent coughing, sometimes accompanied by a deep, crowing, inspiratory whoop sound. If not treated promptly, the condition can last for several months, which is why it is called whooping cough. Due to its high contagiosity and epidemic history, if infants contract pertussis, their condition can worsen, making them prone to complications like severe pneumonia or heart failure. However, allergic cough is a non-infectious condition primarily caused by hypersensitivity of the airways, easily triggered by various external allergens, leading to irritating dry coughs, but not worsening to lower respiratory tract infections. In daily life, by avoiding environmental allergens and using treatments such as nebulization and oral antiallergic medications, management is possible.