Chronic colitis can be relieved by taking probiotics, but it can’t be cured, and it needs to be treated according to the cause of the disease, in order to be cured. Chronic colitis may be caused by infection, immunity, environment and other factors such as colonic mucosal erosion, edema and so on. Taking probiotics can maintain the balance of intestinal flora, improve the immune function of the intestinal mucosa, promote nutrient absorption and inhibit intestinal inflammation, alleviate diarrhea to a certain extent, but also need to be based on the cause of the joint treatment with other drugs. If it is ulcerative colitis, salicylic acid preparations, such as mesalazine, sulfasalazine, combined with immunosuppressants, such as azathioprine, cyclosporine and other drugs. Patients with chronic colitis are advised to seek timely medical attention and take medication as prescribed by the doctor, self-medication is not recommended.