How to Handle Fever in Babies After Vaccination
Dear parents, seeing your baby develop a fever after vaccination may cause worry, which is a completely normal reaction. Mild fever following vaccination is usually a sign of the baby's immune system actively working, indicating the vaccine is helping build protective barriers. In most cases, this reaction resolves on its own within 1-2 days. As new parents, your careful observation and calm response are your baby's strongest support—remember, this temporary discomfort is a necessary step on the path to healthy growth.
Possible Causes
- Vaccine stimulating the immune system: After vaccination, vaccine components trigger the body's defense mechanisms, causing a mild inflammatory response that leads to an increase in body temperature.
- Body's adaptive response: The infant's immune system is learning to recognize and respond to pathogens; this "practice" process may be accompanied by fever (according to WHO 2022 guidelines).
- Other coincidental factors: In rare cases, fever may be unrelated to vaccination and could be caused by environmental changes or minor infections.
Home Care Recommendations
- Maintain a comfortable environment: Dress the baby in light, breathable clothing, keep the room temperature around 20-22°C, and avoid over-bundling to help dissipate heat.
- Ensure hydration: Encourage frequent breastfeeding or formula feeding (as recommended by AAP 2021 guidelines) to ensure adequate hydration and prevent dehydration.
- Physical cooling: Gently wipe the baby's forehead, armpits, and other areas with lukewarm water (approx. 37°C) for 5-10 minutes at a time; this often relieves discomfort in most cases (avoid using alcohol or ice water).
- Use fever reducers if necessary: If the baby is irritable, infant-appropriate fever reducers (such as acetaminophen-based medications) may be used under a doctor's guidance, but always follow dosage instructions.
When to Seek Medical Care
- ⚠️ Temperature exceeding 40°C or persistent fever lasting more than 48 hours.
- ⚠️ Appearance of unusual symptoms such as persistent vomiting, difficulty breathing, or rash.
- ⚠️ Baby appears lethargic, refuses to eat, or shows signs of convulsions (e.g., twitching).
Seek immediate medical attention if any of the above signs appear.
Conclusion
Fever after vaccination is a testament to your baby bravely facing the world, and your gentle care will make this journey warmer. Every instance of discomfort is a milestone of growth—trust your instincts, remain patient, and know that you and your baby are moving hand-in-hand towards a healthier future!
The information provided in this article is for reference only and cannot replace professional medical diagnosis or treatment advice; if your child experiences any health issues or the danger signs mentioned above, please consult a qualified healthcare provider immediately.