Five-month-old babies with diarrhea do not drink milk is often seen in infectious diarrhea disease, treatment requires oral Montelukast and other drugs to alleviate diarrhea, while rehydration and anti-infective treatment, as appropriate. Infectious diarrhea disease can cause five-month-old babies diarrhea without milk, treatment can be oral intestinal mucosal protective agents such as montelukast, microecological agents such as Saccharomyces boulardii to alleviate the symptoms of diarrhea, for the baby does not eat milk can not be forced to feed the need for oral rehydration salts to prevent dehydration, if there is a significant dehydration, intravenous rehydration is needed to correct dehydration. If the bacterial infection, according to the drug sensitivity selection application of antibacterial drugs, such as cefixime. If it is a viral infection, it is self-limiting and can be treated without special medication. It is recommended that five-month-old babies who have diarrhea and don’t drink milk consult a doctor in time, and be guided by a specialist for treatment. The above medications should be used in accordance with medical advice.