Q: My 103-day-old baby has a fever of 38.4°C while on antibiotics. Should I go to the ER?

Medically reviewed by Sang Hyun Ahn, MD

Content edited by Myeongchan Kim, MD

This post is a dramatization of a question and answer session experienced by our actual medical reviewers. Please note that this content is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.

Question:

My 103-day-old baby has a cough and a fever of 38.4°C (101.1°F). They are still eating well but seem a bit fussy. They are currently taking cold medicine, which includes antibiotics. Should we go to the emergency room?

Answer:

I understand your concern about your 103-day-old baby having a cough and a fever of 38.4°C (101.1°F), especially since they are already taking antibiotics.

Infants around 3 months of age require special medical attention. You should take your baby to the emergency room immediately.

Here is why this is considered an urgent situation:

• Any baby 3 months old or younger with a fever of 38.0°C (100.4°F) or higher is considered a medical emergency.

• It is particularly concerning that the fever is present despite your baby already being on antibiotics.

• Symptoms in very young infants can worsen rapidly.

When you go to the ER, please make sure to bring the following information:

• A record of your baby's temperatures.

• The exact names and dosages of all medications (including the antibiotics) your baby is currently taking.

• The time of your baby's last feeding.

• The number of wet diapers (this helps the medical team assess urine output and hydration).

Please head to the nearest emergency room right away. A fever of 38.4°C in a 103-day-old infant absolutely requires an in-person doctor's examination. The fact that your baby is fussy is also a clinical sign of discomfort. Getting evaluated at the hospital will help determine the exact cause of the fever and ensure your baby receives the prompt, proper treatment they need.

For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.

fevercoach.us

Apple App Store

Google Play

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