Infants do not drink deeply hydrolyzed milk powder, parents need to be patient and repeat the process of adaptation to deeply hydrolyzed milk powder as early as possible by making several attempts. Once the baby is diagnosed to be allergic to cow’s milk protein, the baby should use the deeply hydrolyzed milk powder as early as possible, the earlier the use the easier to accept. When using deeply hydrolyzed milk powder for the first time, try to use it when the baby is relatively hungry, so that the baby can easily ignore the special bitter taste of deeply hydrolyzed milk powder. When breastfeeding, parents need to maintain a calm state of mind, do not give the child negative hints, non-stop soothing soothing, show worry, distress, etc., everything goes with the flow, so that the baby is more likely to accept. If the baby refuses, don’t be discouraged because it takes about ten attempts for the baby to accept a new food, so after refusing, you can choose to try again until the baby accepts it completely.