Q: My 3-month-old baby with pneumonia has a low temperature around 35°C. What should I do?

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:

Hello. We went to the emergency room, and my 3-month-old baby was diagnosed with pneumonia. Since there were no hospital beds available, we are scheduled to be admitted to a children's hospital tomorrow. The baby had a fever earlier, but it dropped completely in the afternoon. Even though we haven't given any fever reducers, the baby's temperature is now hovering around the low 35°C range. There is sweat on the baby's head, and while the hands and feet are warm, the head feels very cold. The ER staff mentioned that the bronchial injection the baby received has nothing to do with hypothermia. Is it okay to just wait and go to the outpatient clinic tomorrow morning? What can I do right now to help my baby?

Answer:

It is completely understandable that you are very anxious about your 3-month-old baby having a temperature in the low 35°C range after being diagnosed with pneumonia.

Red Flags: Check these immediately

If any of the following apply, please go back to the emergency room right away:

• The baby is unusually lethargic, limp, or difficult to wake up.

• The lips are turning blue, or the baby is struggling to breathe (e.g., the skin pulls in under the ribs, or the nostrils flare out).

• There has been no wet diaper for more than 8 hours.

• The baby is completely unable to feed or is vomiting.

What to do now (if there are no red flags, and the baby is awake and feeding):

• Re-measure temperature: Wait 5 minutes and check the temperature again under the armpit to ensure sweat or clothing isn't affecting the reading.

• Adjust clothing and environment: Put one more layer of thin clothing on the baby and maintain a comfortable room temperature of 22–24°C.

• Maintain feeding: Continue to feed the baby as usual. Do not forcefully wake the baby to feed; keep the routine as natural as possible.

• Manage head sweating: Sweating on the head can be a normal part of the body's temperature regulation process. Remove any wet hats and gently wipe the sweat away with a dry towel.

Regarding your outpatient visit tomorrow:

• If your baby is feeding well, urinating normally, and remains alert, it is safe to proceed with your scheduled visit to the children's hospital outpatient clinic tomorrow morning.

• However, if any of the danger signs mentioned above appear at any point during the night, go to the emergency room immediately.

Because your baby was recently diagnosed with pneumonia, temperature fluctuations can be expected. However, in a 3-month-old infant, even minor changes can progress very quickly. Please monitor your baby's condition frequently overnight, and do not hesitate to seek immediate emergency medical care if you observe any concerning changes.

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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