The reasons why children’s eczema grows again after getting well include the following two aspects: first, caused by children’s exposure to allergens that are not avoided. Most of the causes of eczema in children are due to allergens stimulated, such as eating milk that causes allergies in children or contact with other special substances, children in contact with allergens will cause the body’s immune response, the immune response is too strong after the eczema and other symptoms. Secondly, the symptoms are caused by the child’s allergies not being improved. If the allergy is not improved by medication, the child’s allergy condition will persist and cause recurring eczema, which can be relieved by applying anti-allergy medication, such as montelukast or loratadine.