There is no fast way to stop diarrhea, it may be caused by bacterial infections, viral infections, parasitic infections, etc. According to the cause of the disease, we need to follow the doctor’s instructions to give anti-infectious, antidiarrheal, rehydration, deworming treatment. 1. Bacterial infections: diarrhea like water most may be caused by bacterial infections, can be given antibiotics as prescribed by the doctor, such as norfloxacin, levofloxacin and other anti-inflammatory, taking montelukast anti-inflammatory antidiarrheal, assisted by oral rehydration salts, and intravenous rehydration in severe cases. 2. Viral infections: diarrhea caused by viral infections is mainly symptomatic treatment, oral rehydration salts or intravenous saline, combined with montelukast to stop diarrhea, taking bifidobacteria to regulate the intestinal environment. 3. Parasitic infections: intestinal infections such as roundworms, pinworms and other causes of diarrhea can be prescribed to give albendazole, montelukast and other drugs to expel worms, antidiarrheal treatment. It is recommended that patients seek medical advice in a timely manner, under the guidance of a physician to use drugs, do not take medication, so as not to delay the condition.