There is no quick fix for two year old baby diarrhea, two year old baby diarrhea may be caused by poor gastrointestinal function, acute enteritis, bacterial dysentery, lactose intolerance, etc., through dietary modification, medication, supplemental fluids and other methods to alleviate the symptoms. 1. poor gastrointestinal function: two-year-old baby’s gastrointestinal function is relatively poor, a time to eat too much or complex food types may have diarrhea, this kind of baby to regulate diet, usually eat less and more meals, food types are not too complex, the available probiotics to regulate gastrointestinal function, such as bifidobacteria triple live bacteria. 2. Acute enteritis: two-year-old baby diarrhea may be caused by acute enteritis, such as bacterial infection caused by enteritis, can take cefixime particles anti-infective treatment, such as viral enteritis, you can take montelukast for diarrhea, during the period of appropriate drinking warm water or rice soup. 3. Bacterial dysentery: two-year-old baby eating unclean food, can lead to bacterial dysentery, there will be diarrhea performance, for dysentery can choose some antibiotic treatment, such as ceftriaxone sodium, benzylpenicillin, etc., diarrhea symptoms are more serious to rehydration therapy to avoid dehydration. 4. lactose intolerance: two-year-old baby diarrhea may also be caused by lactose intolerance, parents can give the baby oral lactase, etc., can improve the symptoms. The two-year-old baby diarrhea symptoms are more serious, it is recommended that timely medical treatment. The above drugs need to be used in accordance with medical advice.