In the early stages of whooping cough, also known as the incubation period, symptoms similar to those of a cold can occur, including runny nose, sneezing, mild fever, and an irritating dry cough. If the disease progresses for two to four weeks, it typically presents with episodes of spasmodic, convulsive coughing, characterized by a notable change in the sound of the cough. Some children might exhibit a bark-like cough or a crowing-like cough. Accompanying symptoms can include redness of the face and ears, tearing, more runny nose, as well as signs of oxygen deprivation such as nausea, vomiting, and cyanosis of the lips. It is advisable to further conduct pathogen culture to confirm the diagnosis and initiate timely treatment.