Q: Child discharged after Rhinovirus but has night fevers of 38.5°C. Are further blood or virus tests needed?
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:
A month ago, my child was treated for two weeks for antibiotic-resistant Mycoplasma pneumonia. Recently, they tested positive for Rhinovirus and were hospitalized for four days. We were just discharged, but my child is still coughing a lot and has white nasal discharge. The main issue is that since Wednesday, they have been getting a fever of 38.5°C (101.3°F), but only at night. In the mornings, after taking a fever reducer, they seem completely fine. In this case, should we do another viral test? We have a follow-up appointment with our doctor tomorrow; should we request a blood test?
Answer:
You have been through a lot managing your child's recent respiratory illnesses and hospital stays.
Based on your description, your child was recently discharged after a Rhinovirus infection but has developed a night-time fever of 38.5°C (101.3°F) alongside a lingering cough and white runny nose. Fortunately, they are responding well to fever reducers and are doing fine during the day, and you already have a follow-up visit scheduled for tomorrow.
What you can do at home right now:
Keep a written log of the night fevers (note the time, temperature, and the dosage of the fever reducer given) as well as your child's daytime activity levels. Bring this note to your appointment.
Offer fluids frequently in small amounts to keep them hydrated.
Maintain indoor humidity between 40-60% and continue gentle nasal saline drops or washes.
While a persistent cough and runny nose alone do not always mandate immediate additional testing, the specific pattern of a fever occurring only at night is a crucial clinical clue for your doctor.
Questions to ask at your appointment tomorrow:
"Is this night fever pattern a normal part of the recovery process from the recent virus?"
"Do you recommend a blood test or an additional viral swab now, or is it safe to continue observing the symptoms at home?"
When to seek immediate medical care before your appointment:
The fever starts persisting during the day, or the fever reducers lose their effect quickly.
Your child shows signs of breathing difficulty or has bluish lips.
There is no urine output for 8 hours or more.
Your child becomes severely lethargic, unusually floppy, or is difficult to wake up.
In summary, keep an accurate record of the fever patterns tonight and share them with your pediatrician tomorrow so they can accurately determine if further testing is necessary. As long as there are no emergency warning signs, continue to keep your child well-hydrated and observe them closely until your scheduled visit.
For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.
