Vaccines in the First Year: What to Expect
Normal reactions, warning signs, and how to relieve discomfort.
Vaccines are one of modern medicine's greatest victories. Your baby will receive several in the first year, and each protects against diseases that were once fatal. It's normal to worry about reactions — here's what's normal and what isn't.
Normal reactions (don't panic)
Low fever (up to 38.5°C / 101.3°F) in the first 24-48 hours
Crying up to 2-3 hours after vaccination
Redness and some swelling at the injection site
Drowsiness or irritability on vaccination day
With MMRV (measles): fever can appear up to 10 days later
Go to the doctor immediately if: fever above 39.5°C (103.1°F), inconsolable crying for more than 3 hours, seizure, or signs of allergic reaction (facial/throat swelling, difficulty breathing, widespread hives).
How to relieve discomfort
Breastfeed right before and after — reduces pain by up to 50%
Skin-to-skin contact during injection if possible
Cool cloth (not ice) on injection site for swelling
Pediatric acetaminophen only if feverish — ask your pediatrician about dosage
Extra cuddles and contact that day
📲 Share this tip
Breastfeeding during vaccination reduces pain by up to 50%. If you can, do it.
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mi·ma has the complete vaccine schedule for your country. Check off each vaccine as it's given and receive reminders before upcoming appointments.
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mi·ma is a support logbook for parents. This guide is informational and does not replace consultation with your pediatrician. For any concerns about your baby's health, consult a healthcare professional.
Sources
- · CDC Recommended Immunization Schedule 2024
- · OPS Guía de Vacunación 2024