In general, drinking Saccharomyces boulardii for enteritis is a helpful aid. Enteritis is usually caused by bacteria, viruses, fungi and other conditions, and patients usually have nausea, vomiting, diarrhea and other symptoms. Saccharomyces boulardii is a microecological drug preparation that is usually used to regulate intestinal flora, among other things. This drug is an aid in the treatment of enteritis and diarrhea caused by bacteria and fungi. Some patients may experience adverse reactions such as allergy, urticaria, dry mouth, constipation and edema after using Saccharomyces boulardii. Patients who are allergic to the components of Saccharomyces boulardii, patients with fructose intolerance, galactose absorption disorders and other patients should be prohibited from using this drug. Avoid using too hot water when using this drug, otherwise it will lead to a decrease in the effectiveness of the drug. Care should also be taken to avoid coadministration with antibiotics, as this can also lead to a decrease in efficacy. If the patient’s symptoms of enteritis are severe, or if the symptoms persist and do not improve, he or she should go to the hospital for treatment. All medications should be used under the guidance of a doctor and should be avoided.