The causes of infant eczema are complex, the most important of which are allergic factors, and babies with a family history of allergies are more likely to develop eczema. Eczema in babies who are exclusively breastfed is most likely due to breast milk allergy. It is recommended to do this in three steps: the mother first prohibits foods that contain milk protein, such as milk, eggs, aquatic products, etc.; ‘If the baby’s allergy symptoms are not particularly serious, you can try the “breast milk + milk powder” mixed feeding method, but the choice of milk powder is very delicate, must choose “If your baby’s allergy symptoms are serious, such as eczema, colic, diarrhea, etc., you should quit breastfeeding. Choose “allergy-free” milk powder, i.e. free amino acid milk powder. If the allergy improves, you can try to transition to deeply hydrolyzed protein formula with prebiotic combination; after 4 to 12 weeks, gradually transition to partially hydrolyzed formula with prebiotic combination. In addition, you need to pay more attention to the baby’s care, baby’s intimate clothes, bedding as far as possible to use cotton materials, clothing should be looser, light and soft. Avoid overheating and sweating. When bathing, it is best to use warm water, avoid using strong alkaline bath products to remove fat, but choose the acidic. It is advisable to keep the room clean and hygienic, ventilation, room temperature should not be too high, otherwise it will make the itchy eczema worse.