Abstract: Eczema is a clinically common skin disease with obvious exudative tendency in infants and young children.In recent years,with the application of a large number of biochemicals and the changes in environment,the incidence of eczema in children has gradually increased.The disease is persistent and difficult to cure and has a high recurrence rate,which seriously affects children′s daily diet and sleep,and may also interfere with their growth and development.Therefore,active treatment is needed.The collaterals are the organic channels connecting the internal organs,the external limbs,and the upper and lower parts of the human body,and they are also the channels for the invasion and spread of evil qi.The theory of visceral collaterals originated from the "Huangdi Neijing",and gradually became a theory in the Qing Dynasty after being supplemented and developed by medical practitioners throughout history.Visceral collaterals theory has obvious advantages in treating chronic diseases,persistent diseases,diseases difficult to cure,and skin diseases.Modern doctors do not attach enough importance to the theory of collaterals,and its clinical application is limited;especially,children′s development is usually incomplete,and there are many doctors who don′t know how to treat through collaterals.In clinical practice,visceral collaterals theory is used in the differential treatment of childhood diseases,integrating visceral syndrome differentiation with the theory of collateral diseases.It is found that the pathogenesis of this disease is that "the collaterals of spleen and lungs are damaged by dampness and heat",and the disease is divided into three stages and is treated based on syndrome differentiation.During treatment,a combination of internal and external treatment is used,focusing on unblocking the collaterals,so that the dampness and heat can be reduced internally and dispersed externally,which effectively shortens the course of the disease and reduces the pain of children.This provides effective new ideas and methods for the clinical practice of traditional Chinese medicine in pediatrics.

Key words:

Eczema；Visceral collaterals, External therapy of traditional Chinese medicine；Child