Local remedies for diarrhea include dietary regimen, external application of drugs, etc., specifically the following: 1, dietary regimen: wash apples with skin in a bowl, steam them in a pot with water and eat them, the cooked apple flesh has the effect of astringent diarrhea; or put tea leaves and peeled and shelled garlic cloves into a pot, add water to boil, pour into a bowl 4-5 minutes after boiling, and take orally when warm. You can also make a decoction of pomegranate peel, add sugar and take it for a long time to cure chronic diarrhea; 2. External application of medicine: sprinkle white pepper on a handkerchief or gauze and then apply it to the umbilicus, which can also be used to relieve diarrhea. However, patients need to note that there are many causes of diarrhea, which need to be targeted according to different causes, and there is no scientific basis for native remedies, which may aggravate the condition. After diarrhea occurs, patients can drink more water to avoid dehydration symptoms and pay attention to rest. For severe symptoms, oral antidiarrheal medication such as montelukast can be administered as prescribed by the doctor, and attention can be paid to replenishing sugar and saline to prevent electrolyte disorders. If the dehydration is serious, it is necessary to go to the hospital promptly to replenish water and electrolytes intravenously.