The causes of eczema in children are as follows: first, it is caused by congenital genetic factors. These children often have a family history of allergy, the child’s father, mother or other immediate family members also have allergic symptoms, such as the mother will also have eczema or allergic rhinitis, bronchial asthma and other allergic diseases, the child has congenital allergy genes, and thus prone to eczema. Secondly, due to environmental stimuli, such as hot and humid environment stimulation. Finally, the child’s physical state decline, lower resistance is also prone to eczema.