Baby skin allergy, first of all, we need to find the cause of the baby’s skin allergy. For infants under three years old, a common food allergen is milk protein. If the child is allergic to milk protein, it can be solved by the following methods: 1. In terms of feeding: for breastfed children, the mother should avoid milk and milk products, and for artificially fed children, use hypoallergenic formulas, such as amino acid formulas or deeply hydrolyzed formulas. 2. In terms of eczema treatment: the whole body should use moisturizers in sufficient quantity and several times. This is the basis for the treatment of skin allergies. If the eczema is relatively light, you can use local zinc oxide ointment or skin cream. If the eczema is serious, it is recommended to use glucocorticoids, choose weak or medium-acting glucocorticoids, and gradually reduce the dose. In addition, you can also give your child appropriate oral antihistamines, such as cetirizine hydrochloride or loratadine.