Loose stools are related to indigestion, acute enteritis, food allergy, etc., and can be improved with medication as prescribed by the doctor. 1. Dyspepsia: If it is clearly caused by dyspepsia, patients need to use lactobacillus, bifidobacterium and other intestinal microecological agents to regulate the intestinal flora, so as to improve the loose stools and not shaped. Some patients also need to use montelukast to achieve the purpose of stopping diarrhea. Daily dietary adjustments are needed to avoid the intake of cold, spicy and irritating foods. 2. Acute enteritis: when the disease causes loose stools, patients can follow the doctor’s instructions to use montelukast to reduce the frequency of diarrhea; some patients can also follow the doctor’s instructions to use loperamide and other drugs to stop diarrhea. At the same time in the use of drugs, patients need to timely rehydration, in order to waterproof electrolyte disorders. 3. Food allergy: food allergy patients need to follow the doctor’s instructions oral antihistamine drugs, such as cetirizine, loratadine. For the phenomenon of loose stools, patients can also follow the doctor’s instructions with montelukast, loperamide and other antidiarrheal drugs. There are many causes of loose stools, such as ulcerative colitis, acute food poisoning, sepsis, bacillary dysentery and so on. It is recommended that the patient consult a doctor for examination and treatment as prescribed by the doctor after clarifying the cause of the disease, and not to use medicines or prescriptions indiscriminately on their own.