There is no fastest solution for babies with watery stools, and daily care and medication are the mainstay of treatment, which may be related to bacterial infection, viral infection, or allergy to milk proteins or lactose intolerance. 1. Bacterial infections: If a bacterial infection causes a baby to have watery stools, antibacterial drugs such as cefixime can be applied according to the drug sensitivity. 2. Viral infections: If viral infections cause the above situation, generally do not need special anti-infective treatment, need to symptomatic use of antidiarrheal drugs, such as montelukast, oral probiotics such as bifidobacteria to regulate intestinal flora. 3. Milk protein allergy, lactose intolerance: babies with watery stools may also be related to milk protein allergy, lactose intolerance and other factors, need to pay attention to adjust the feeding mode, or change the special milk powder to help relieve. The baby water stools recommended timely to the hospital for relevant examinations, clear causes and actively treat the symptoms, the above drugs need to be taken under the guidance of a doctor, not to be used on their own.