Abstract: Post-infection cough is a common illness in children,and it is persistent and difficult to be cured.Based on the characteristics of children′s physique,Professor Sun Liping points out that the dampness-heat constitution factors run through the whole process of post-infection cough of children,so in the treatment Prof.Sun advocates the way of "decomposition,diaphoresis,purgation and diuresis" on the basis of the treatment for cough in order to improve the dampness-heat constitution and accelerate the recovery of children.In clinical practice,the treatment is mainly based on the syndrome differentiation of dampness and heat accumulated in lungs and dampness and heat damaging yin,and Sanren decoction combined with Zhike powder and Bufei powder with modification are used,which usually has good results.

Key words: Post-infection cough, Constitution theory, Expert experience, Child