Q: My 8-year-old's fever returns every 3-4 days, but blood tests are normal. What could be the cause?

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Question:

My 8-year-old child has had a recurring fever every 3-4 days over the past week. Other than a very stuffy nose, he has no major symptoms, although he had diarrhea once. His fever initially responds to fever reducers but then comes back. We went to the doctor, and blood tests showed normal white blood cell and inflammatory markers, but his neutrophil count was slightly high. The doctor didn't seem concerned and only prescribed medication for his stuffy nose, not antibiotics. I'm worried because the fever keeps coming back. Could this be a series of different viruses, or one persistent infection? Should we be doing more tests?

Answer:

I completely understand your concern when your 8-year-old has a recurring fever over a week. It can be especially unsettling when the fever keeps coming and going.

【Current Situation Assessment】

The fact that the blood tests show normal white blood cell and inflammatory markers is a good sign. A slight elevation in neutrophils can be common in the early stages or recovery phase of a viral infection. This is likely why your doctor was not overly concerned.

【Possible Causes of Recurring Fever】

• Successive Viral Infections: Your child might be sequentially exposed to different cold viruses at school.

• One Prolonged Viral Infection: Some viruses can cause a fever that fluctuates for 7-10 days.

• Temporary Dip in Immunity: After the first infection, a weakened immune system might make your child more susceptible to another virus.

【What You Can Do Now】

1. Log the Fever Pattern: Note the time, temperature, and response to fever reducers.

2. Ensure Plenty of Rest and Hydration.

3. Alleviate Nasal Congestion: Use a humidifier or saline nasal spray.

4. Keep Him Home from School: Even on days without a fever, it's best to rest for an extra day or two.

【When to Revisit the Hospital】

→ The fever persists for more than 10 days.

→ Difficulty breathing or chest pain develops.

→ Severe headache or a stiff neck occurs.

→ The fever is accompanied by a rash or joint pain.

→ Extreme fatigue or a sharp decrease in activity level is observed.

Further testing should be considered if symptoms last for more than two weeks or worsen. Most viral infections resolve over time, so for now, focus on closely monitoring your child and supporting their immune system.

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