Abstract: Pediatric eczema is a common inflammatory skin disease in clinic,and the unique geographical and cultural environment of cold regions leads to repeated bouts of eczema,which seriously affects the physical and mental health of the children and their quality of life.This paper summarizes the experience of Professor Wang Youpeng in treating pediatric eczema in cold regions based on the theory of "Interaction between Lung and Large Intestine".The causes and mechanisms of pediatric eczema are concluded as wind-evil retention,dampness-heat accumulation in the intestine and internal organs,and excessive dryness and insufficient fluid.In the clinical treatment of pediatric eczema,the method of dispersing wind and dispelling evil,eliminating and dispersing,and nourishing yin and moistening dryness is used,which has achieved significant effect.A case is given here to provide a new idea for the TCM diagnosis and treatment of eczema in cold regions.

Key words: Interaction between Lung and Large Intestine, Eczema, Pediatrics in cold regions, Eliminating and dispersing, Famous doctors′ experience, Child