Since diarrhea lasts for a week, it is recommended to go to the gastroenterology department or the emergency department for routine blood, stool and electrolyte tests to rule out electrolyte disorders and intestinal infections. In addition, other medications can be used in combination with the situation, but the first thing is to go to the hospital for the relevant examination. The following three types of drugs are commonly used, such as montelukast and diphenoxylate, which are more commonly used antidiarrheal drugs. The intestinal microenvironment regulator can be applied, that is, probiotic preparations such as bifidobacterium, lactobacillus, bacillus subtilis and other capsule preparations, and can also be combined with the test results, the application of antibacterial drugs for treatment such as ofloxacin, norfloxacin, PPA and so on.