Infant indigestion can be improved by taking probiotics such as Bifidobacterium bifidum, Bacillus subtilis and Saccharomyces boulardii under doctor’s guidance. 1. Bifidobacterium bifidum: distributed in the human digestive tract and mouth, it can regulate the intestinal flora and maintain the balance of intestinal function, stimulate gastrointestinal peristalsis. 2. Bacillus subtilis: It can work together with digestive enzymes in human digestive tract, which is favorable to the digestion and absorption of food. 3. Saccharomyces boulardii: this is a class of fungi, some babies in the use of antibiotic treatment, there will be intestinal flora disorders, can be supplemented under the guidance of the doctor Saccharomyces boulardii to regulate intestinal flora. If the toddler is not adapted to the body in time to consult a doctor, do not use drugs, should be under the guidance of the doctor to be appropriate treatment.