Please introduce infant feeding knowledge and daily precautions.

Patient's question:

Main symptoms: Onset at 15 days of age, diarrhea
Onset time: Diarrhea
Test results: None

Doctor's answer:

Medical Analysis: Hello, for your 15-day-old child, please pay attention to the following key points:
Guidance:
1. Breastfeed on demand. Preferably with breast milk.
2. Prevent infection. Keep children away from those with colds.
3. Maintain normal body temperature. A temperature between 36°C and 37°C is acceptable.
4. Start calcium and fish oil supplements at 2 weeks, and iron supplements at 2 months to prevent iron-deficiency anemia.
5. Change diapers frequently to prevent diaper rash.
6. Follow the schedule for preventive vaccinations.
Lifestyle Care: Prevent infection, feed reasonably, and maintain hygiene.