Chapter 2 Skin Health and Representative Skin Diseases
Healthy and intact skin acts as the first barrier，protecting the body against a variety of external physical and chemical damages，and microbial invasion.If the skin is damaged，the barrier function is impaired，which will lead to skin inflammation，allergy and other corresponding skin diseases.This chapter will introduce the composition，function and homeostasis regulation of the skin barrier，and explain the relationship between skin barrier damage and several common skin diseases.(https://www.daowen.com)
