The treatment of lactose intolerance in infants includes acute treatment, general treatment and medication. 1. Acute treatment: children with severe diarrhea should be given timely treatment to maintain the body’s water-electrolyte balance to avoid dehydration, electrolyte disorders and other abnormalities. 2. General treatment: it is not necessary to completely prohibit the intake of dietary lactose, but need to completely control the amount of lactose intake, according to the severity of the disease, you can follow the doctor’s instructions to choose low-lactose milk powder, to ensure that infants and young children in the body of the normal supply of protein. 3. Medication: When diarrhea is more pronounced, probiotics such as bifidobacteria can be used to regulate the condition, and lactase can also be used to help break down lactose. When using medication, parents must follow the doctor’s instructions, safe to give the child to take drugs, do not indiscriminate use of drugs, to avoid causing serious adverse reactions.