Repair of the intestinal mucosa can be treated by medication, such as glutamine, montelukast, probiotics, etc., combined with dietary modification. 1. Drug treatment: (1) Glutamine: Glutamine can act on the intestinal mucosal epithelial function to promote epithelial growth and repair, improve intestinal immune function, and can improve intestinal mucosal injury. (2) Montelukast: It plays the role of astringent, antidiarrheal, forms a protective layer in the intestinal mucosa, repairs the intestinal mucosa and improves the intestinal function. (3) Probiotics: for example, Boulardia, yeast bifidobacteria, etc. form a deep barrier on the surface of the intestinal mucosa, inhibit the reproduction and invasion of pathogenic bacteria, and promote the repair of intestinal mucosa. (4) Bismuth: commonly used drugs include colloidal bismuth pectin and bismuth potassium citrate, which can form a protective layer on the surface of the intestinal mucosa and promote intestinal mucosal repair. 2. Dietary regulation: diet, eat some easily digestible food with millet porridge, noodles, rice porridge, rice soup and so on to the intestinal tract to reduce the burden, help intestinal mucosa repair. Intestinal mucosal injury, it is recommended to seek medical advice, follow the doctor’s instructions for medication, do not self-medication.