Diarrhea and bloody stools can be treated with medicines such as norfloxacin, montelukast, and salazosulfapyridine. There are some people who have diarrhea along with blood in the stool, which is caused by a bacterial infection in the intestines and can be treated with norfloxacin medication. Norfloxacin is a broad-spectrum antibiotic drug, mainly to inhibit the growth of harmful intestinal bacteria, eliminate the inflammation of the intestinal mucosa, so not only can relieve the symptoms of diarrhea, but also eliminate the inflammation of the intestinal mucosa, relieve the symptoms of blood in the stool. Rotavirus infection not only causes diarrhea, but in severe cases, it can also lead to intestinal mucosal necrosis, detachment and bloody stools. There is no specific treatment for rotavirus. For people with severe diarrhea, you can use Montelukast for anti-diarrhea treatment, which can adsorb harmful bacteria in the intestines, protect the gastrointestinal mucosa, and promote the formation of feces, which can shorten the cycle of rotavirus infection. Some people have diarrhea with blood due to ulcerative colitis, can be treated with Liuzosulfapyridine, the active ingredient of Liuzosulfapyridine can stay in the intestinal wall for a long time, so as to achieve antibacterial, anti-inflammatory, improve intestinal immunity, and therefore can promote the healing of ulcerative colitis.