Abstract: Chronic cough is one of the common reasons for clinical treatment in children. There are many causes of chronic cough in children, and the main reason is respiratory tract infection, with Mycoplasma pneumoniae infection as the main cause, which has shown an increasing trend year by year. Professor Sun Liping believes that the etiology and pathogenesis of chronic cough due to mycoplasma pneumonia is mostly pathogenic heat in the lung and stasis of lung-Qi. Therefore, in syndrome differentiation, Prof. Sun uses the method of cleaning away heat of lung and relieving cough, in which Xiaoke Yin and Radix scutellariae are used to treat chronic cough due to mycoplasma pneumonia, and it achieves good curative effect.

Key words: Chronic cough, Mycoplasma pneumonia, Xiaoke Yin, Radix scutellariae, Children