Q: My child has a 40°C fever and a strawberry tongue. Should we go to the ER tonight?
- Myeongchan Kim, MD

- Jul 28
- 3 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 has had a high fever of 40°C since this morning. Even after alternating two different fever-reducing medications, the fever hasn't dropped below 38°C. Suddenly, this evening, my child's tongue started looking like a "strawberry tongue." Could this be what it is, and if so, should we go to the emergency room right now?
Answer:
It is completely understandable that you are alarmed to see a persistent high fever accompanied by changes in your child's tongue.
【When to Visit the ER Tonight】
If your child has any of the following symptoms, an immediate evaluation at the emergency room is required tonight:
Non-blanching red spots on the neck, armpits, or groin (a rash that does not fade or turn white when pressed with a finger).
A stiff neck or severe headache accompanied by repeated vomiting.
No urination for over 8 hours, or severely dry lips and tongue (signs of severe dehydration).
Extreme lethargy, inability to make eye contact, or difficulty waking up.
Rapid breathing, or the skin under the ribs sinking in with each breath (retractions).
【Causes of Strawberry Tongue】
A strawberry tongue can be a symptom of several conditions, including Scarlet Fever (strep throat), Kawasaki disease, or certain viral infections. Because a visual examination is required, a doctor must determine the exact cause.
Signs of Kawasaki Disease (typically involves a high fever lasting 5 or more days, plus at least 4 of the following):
Bloodshot eyes (without discharge or eye crust).
Cracked lips, strawberry tongue, and a very red throat.
Swollen hands and feet, or redness on the palms and soles.
A rash on the torso.
A swollen lymph node on one side of the neck (larger than 1.5 cm).
【What to Do at Home Right Now】
Double-check medication dosages and intervals: Ensure you are giving the correct weight-based dose. (Acetaminophen: 10–15 mg/kg every 4–6 hours / Ibuprofen: 5–10 mg/kg every 6–8 hours).
Hydration: Offer 1-2 small sips of water or an electrolyte drink every 5 minutes.
Comfort: Dress your child in light, breathable clothing and keep the room temperature comfortable.
Monitor: Keep a close eye on any skin rashes, eye redness, the condition of the lips, and how often the child urinates.
【When to Consult a Doctor】
If your child does not have any of the emergency signs listed above, is able to drink fluids, and is responding well, you can wait and call your pediatrician tomorrow morning for a same-day appointment.
If the fever persists for 5 days or more, or if you notice multiple signs of Kawasaki disease, an immediate medical evaluation (which may involve blood tests and a heart check) is essential.
Summary for Action: Check your child for non-blanching rashes, stiff neck, severe dehydration, or decreased consciousness. If any of these are present, go to the ER tonight. Otherwise, keep your child hydrated, manage the fever as best as you can, and visit your pediatrician tomorrow morning to properly diagnose the cause of the strawberry tongue.

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




![📢 [Important Notice] Create an account on the FeverCoach App before July 5 for lifetime free access](https://static.wixstatic.com/media/5d15bb_0dcb739a970c401396dac49bdafbb351~mv2.png/v1/fill/w_980,h_653,al_c,q_90,usm_0.66_1.00_0.01,enc_avif,quality_auto/5d15bb_0dcb739a970c401396dac49bdafbb351~mv2.png)