Diarrhea is diarrhea, five and a half months baby first time eating rice flour diarrhea should be timely stop feeding rice flour, serious cases need medication. Infants generally add complementary foods should be full six months later, five and a half months of the baby’s gastrointestinal function is not well developed, at this time eating rice flour can increase the burden on the gastrointestinal tract, so the first time to eat rice flour easy to diarrhea, bloating, dyspepsia, and other symptoms, at this time should stop feeding rice flour. Some babies with severe diarrhea, stop feeding rice flour symptoms do not ease, can be given montelukast to stop diarrhea, probiotics such as bacillus subtilis bacillus to regulate the intestinal flora, to help alleviate the symptoms. When diarrhea is severe, it can lead to dehydration, which should be supplemented with fluids and electrolytes in a timely manner. It is recommended that babies with diarrhea seek medical attention in a timely manner, and the above medications must be administered under the guidance of a medical professional to avoid improper use of medication, which may lead to adverse consequences.