For patients with prolonged diarrhea, they can be regulated and treated in the following ways: First, dietary regulation, try to eat soft, liquid food that is easy to digest, and avoid spicy, greasy and cold foods that may aggravate diarrhea. Secondly, Chinese medicine treatment, you can drink soup according to the diagnosis and treatment, oral ginseng and spleen tablets, ginseng and white atractylodes, etc. for treatment. Third, Western medicine treatment, you can take oral medication to regulate intestinal flora, such as Mechengan, Pefikang, etc. If the diarrhea is serious, you can temporarily take oral montelukast for treatment. If after the above treatment still can not be relieved, it is best to do a colonoscopy related examination to see what causes the diarrhea.