Yeast tannin and montelukast can be taken throughout the day, but attention needs to be paid to the interval of at least 1-2 hours. Besides protecting the mucous membrane of the gastrointestinal tract, montelukast can also adsorb the active ingredients of other drugs, causing them not to play an effective role, so you need to take montelukast on an empty stomach and do not eat for half an hour before and after. After taking montelukast for 1-3 hours, it can be combined with the use of tannin protein yeast bulk to make the protein on the surface of intestinal mucosa precipitate, reduce inflammatory permeation and reduce intestinal peristalsis, and play the role of astringent and antidiarrheal to improve the patient’s indigestion symptoms. If the diarrhea is still not relieved after the patient takes these two drugs, it is recommended to go to a regular general hospital as soon as possible, improve the relevant laboratory tests, clarify the cause of diarrhea, and take oral probiotics to regulate intestinal flora and relieve symptoms under the guidance of a doctor. In addition, patients with diarrhea are prone to dehydration and should be rehydrated promptly with warm saline or sweetened saline, and in severe cases, prompt infusion of fluids. During the medication period, patients should rest in bed, pay attention to abdominal warmth, and eat a light diet, mainly liquid food, such as thin rice, noodles, rice soup, millet porridge, etc. Do not eat spicy, stimulating, cold, greasy, and not easily digested and absorbed food.