Q: Why does my 8-year-old's fever and chills keep returning after being treated for tonsillitis?

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 8-year-old child had a fever a while ago. We found out it wasn't the flu, but they had a severely swollen throat and were diagnosed with tonsillitis. They took prescribed medication for 5 days, the fever went down quickly, and they seemed to get much better.

However, about a week later, the fever returned in the evening along with chills. I gave them a fever reducer, and they were fine again. Then, three days after that (tonight), they are having chills and a fever once more.

Why is this happening? Could it just be fatigue? They also complain of a mild sore throat. I will take them to see a doctor tomorrow, but I'm worried. The fever does go down immediately after taking the fever reducer.

Answer:

You must be very worried since the fever keeps returning after the initial tonsillitis treatment.

[Summary of the Current Situation]

• Initial Tonsillitis: Improved after taking antibiotics for 5 days.

• Relapse: Chills and fever recurring in the evenings a week later, and again a few days after that.

• Good response to fever reducers, but a mild sore throat persists.

[Possible Causes]

1. Reinfection: New exposure to a different virus (other respiratory viruses besides the common cold or flu).

2. Incomplete Treatment: The tonsillitis may not have fully resolved, or the bacteria may have multiplied again.

3. Recurrent Tonsillitis: Relapses are common in 8-year-olds if they have enlarged tonsils or adenoids.

[What to Do at Home Now]

• Provide plenty of fluids (lukewarm water, broth) and soft foods.

• If the throat is uncomfortable, offer warm drinks, honey tea (safe for children over 1 year old), and have them gargle.

• Use fever reducers only when the child is uncomfortable (strictly follow the dosage intervals).

• Prevent transmission within the family by washing hands and wearing masks.

[Things to Check at Tomorrow's Doctor Visit]

✅ "Do we need to re-examine the condition of the tonsils?"

✅ "Is it necessary to add or change the antibiotics?"

✅ "If it's recurrent tonsillitis, is it time to consider a consultation with an ENT (Ear, Nose, and Throat) specialist?"

[Warning Signs to Watch for Tonight]

If you notice any of the following symptoms, visit the emergency room immediately:

• Difficulty swallowing saliva or excessive drooling.

• Changes in voice or a grunting/stridor sound when breathing.

• Inability to turn the head or a stiff neck.

• Lethargy and poor responsiveness even after taking a fever reducer.

Discussing the condition of the tonsils and the pattern of recurrence at your doctor's visit tomorrow will help establish a clear treatment plan. Please let a medical professional know if any new symptoms arise!

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

https://fevercoach.us