What should I do if my 3-month-old baby has diarrhea?

If a three-month-old baby has diarrhea, parents can take the following measures: 1. Mothers who are breastfeeding should pay attention to their diet and avoid overly greasy or spicy foods. For formula-fed babies, consider switching the formula or adjusting its concentration. 2. Diarrhea can easily lead to dehydration, so it's important to replenish fluids promptly. Offer small amounts of warm water or oral rehydration salts as appropriate. 3. If diarrhea is severe, medications such as pediatric diarrhea patches or smectite powder may be used under a doctor's guidance.