If the body has chronic cough symptoms that do not heal over time and recur frequently, it is suspicious of pertussis infection. To confirm this disease, corresponding auxiliary examinations are needed, such as a complete blood count and sputum culture. If Bordetella pertussis or Corynebacterium diphtheriae are cultured from the sputum, a diagnosis can be made. It is also necessary to combine clinical symptoms and promptly use sensitive antibiotics and cough-relieving expectorant drugs for symptomatic treatment, adjusting the mindset to avoid mental tension.