The main role of probiotics is to help digestion of the gastrointestinal tract, some probiotics have inhibitory effect on Helicobacter pylori, commonly used to promote gastrointestinal function, regulate poor appetite, regulate intestinal flora disorders, and enhance the body’s immune system. 1. Enhance gastrointestinal function: probiotics can promote gastrointestinal peristalsis, thereby promoting defecation and helping to improve poor appetite. 2. Regulate intestinal flora disorders: probiotics refer to live microorganisms that are beneficial to the human body and are planted in the intestinal tract of humans and animals, which can regulate intestinal flora disorders, thus alleviating constipation or diarrhea. 3. Enhance the body’s immunity: probiotics can promote the body’s immune function, promote the vitality of phagocytes, and can play a specific immune function. 4. Application of probiotics can reduce the adverse effects of H. pylori eradication treatment. It should be reminded that patients infected with Helicobacter pylori need to standardize treatment under the guidance of a professional doctor, and should not blindly take medication.