The most commonly used probiotic for the treatment of baby diarrhea is Mamia, chemically known as Bacillus subtilis dibacterium granules, which should be kept refrigerated and taken orally with warm water or milk below 40°C, one packet each time, 1-2 times a day, depending on the age and weight of the baby. If the diarrhea symptoms are more serious, you can also temporarily combined with Simethicone antidiarrheal treatment, one packet per day for babies under 1 year old. If the baby is 1-2 years old, 1-2 packets per day. For babies over 2 years old, one packet per time, 3 times a day. Of course, you should pay attention to feeding your baby light food, eat little and often, and pay attention to keeping the abdomen warm. For severe diarrhea, you need to take your baby to the hospital in time.