1. Definition of Childhood Eczema Childhood eczema is a common skin disease, common in infants and young children between 3 months and 5 years old. Its main characteristics are skin redness, swelling, blistering, exudation, and scabs. In severe cases, it can cause severe itching. The occurrence of eczema is related to genetic factors, environmental factors, etc. 2. Classification of childhood eczema. According to the age of the patient and the site of occurrence, childhood eczema can be divided into the following types: 1. Facial eczema in infancy: more common in children aged 2-3 months