Q: My child's fever rose to 39.5°C after taking a fever reducer and their hands are cold. Do we need the ER?
- Myeongchan Kim, MD

- Jul 28
- 2 min read
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 child had a fever of 39°C around 7:30 PM, so I gave them a fever reducer. However, the temperature has now gone up to 39.5°C. Their hands and feet are cold, so I am worried the fever will rise even higher. Should we go to the emergency room?
Answer:
I understand how stressful it is when your child's fever continues to rise despite giving them medication.
Having cold hands and feet is indeed a common sign that a fever may still be rising. However, please note that it typically takes about 1 to 2 hours for a fever reducer to fully take effect. At this point, your child's overall condition and behavior are much more important than the exact temperature of 39.5°C.
Immediate Actions You Can Take:
Dress your child lightly (just underwear and a single thin layer of clothing is best).
Offer frequent, small sips of water or electrolyte drinks to keep them hydrated.
Maintain a cool and comfortable room temperature (around 24-26°C).
⚠️ When to Go to the Emergency Room:
You should seek immediate medical attention if:
• The baby is under 3 months old.
• The child is extremely lethargic, limp, or unresponsive.
• They are having difficulty breathing.
• They experience a seizure or lose consciousness.
• You notice unexplained purple spots or rashes appearing on their skin.
Remember, how your child is acting is a far more crucial indicator than the number on the thermometer. Keep monitoring their behavior closely. If the fever has not dropped at all 2 hours after administering the medication, and your child continues to be very uncomfortable or lethargic, please visit a pediatrician or the nearest emergency room for a proper medical evaluation.

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




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