Post-Vaccine Care: Keep Your Baby Comfortable! Vaccines protect your baby, but mild side effects like pain, swelling, and fever are common. A cold compress can soothe the injection site, while paracetamol (if advised by your doctor) helps with fever. Extra cuddles and skin-to-skin contact provide comfort, and hydration is key to recovery. Let your baby rest and monitor for any unusual reactions. However, if the fever goes above 102°F, your baby cries excessively, or there’s severe swelling, seek