Diarrhea will not get better immediately, but there will be a process of gradual improvement. Waiting for the recovery of lactase in the intestine, the fastest recovery takes 1-3 days, and the slow recovery may take 1-2 months. When the situation is serious, it is recommended that mother choose diarrhea milk powder for feeding. If it gets better, it needs to be observed for about a week, and there is no abnormality in stool. Then, the mixture of ordinary milk powder and diarrhea milk powder is gradually increased to gradually induce the recovery of lactase in the body and adapt to ordinary milk powder again, because the nutritional intake of diarrhea milk powder for a long time will be insufficient. If you find that your baby has no diarrhea, please immediately switch to ordinary milk powder, which is easy to diarrhea after drinking.