Whether lactose intolerance in babies will resolve on its own depends on the severity of the symptoms. If the symptoms are mild, mothers should pay attention to a balanced diet, which may gradually lead to recovery. However, if the symptoms are more pronounced, it is necessary to visit the hospital promptly for diagnosis. If diagnosed with lactose intolerance, medication, such as lactase, may be required, and the medication should be administered according to the specific conditions of the child. For babies under six months who are exclusively breastfed, it is crucial for mothers to ensure a balanced nutrition. If the baby is over six months old, they should be fed foods that are easy to digest.