Lactose-free milk powder is usually taken for 3 to 5 days to see the effect. The exact time of effect may vary according to the severity of the patient’s condition as well as his/her physical condition. Lactose-free milk powder is mainly suitable for infants and children with lactose intolerance and allergies. It can avoid the diarrhea symptoms caused by lactase deficiency. Generally eat 3 to 5 days can correct the baby’s diarrhea symptoms, but also with the severity of the patient’s condition and the physical condition of the changes that lead to slow results. Moreover, lactose-free milk powder is also adjusted to the protein in the production process, so that the protein in the milk powder is more easily absorbed and utilized by the human body, so the diarrhea milk powder can be used continuously during the course of the disease, and to avoid abdominal pain, diarrhea, loss of appetite and other symptoms caused by infants and young children allergic to the proteins in the milk powder. Lactose-free milk powder should be used under the guidance of a doctor and should not be used without authorization.