Q: My 30-month-old has a 3-day fever of 38.6°C despite antibiotics for sinusitis and fever reducers. Should we get IV fluids?
- Myeongchan Kim, MD

- 11 minutes ago
- 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 30-month-old child has had a high fever for three days. My child was hospitalized twice for pneumonia earlier this year, so I am very worried. Yesterday, we visited a hospital and the doctor diagnosed sinusitis and slight phlegm in the lungs. We were prescribed an antibiotic syrup. However, the fever has stayed between 38.3°C and 38.6°C all day today, even though I am alternating different fever reducers. Since the fever won't go down, should we go to the hospital right now to get IV fluids?
Answer:
I understand how worried you must be, especially since your 30-month-old has been battling a high fever for three days and has a history of pneumonia this year.
Currently, your child has been diagnosed with sinusitis and mild lung congestion, has started taking antibiotics, and continues to have a fever despite alternating fever reducers. Please keep in mind that antibiotics typically take 48 to 72 hours to show their full effect, so it is common for a fever to persist in the early stages of treatment.
Instead of rushing for IV fluids right away, it is important to closely monitor your child's overall condition, including their activity level, appetite, and breathing. IV fluids are generally necessary if your child shows signs of severe dehydration or other concerning symptoms.
When to seek immediate medical attention (Emergency Room):
• Signs of dehydration: no urine for over 8 hours, dry lips, or crying without tears.
• Extreme lethargy, unusual drowsiness, or decreased consciousness.
• Fast, labored, or difficult breathing.
• Inability to keep fluids or medications down due to frequent vomiting.
Home Care Management:
• Hydration is your top priority. Offer water or electrolyte drinks frequently in small amounts.
• Dress your child in light, breathable clothing and keep the room temperature comfortable (around 24-26°C or 75-79°F).
Because your child has a history of pneumonia, careful observation is essential. If your child is not severely lethargic, is still playing a bit, and can stay reasonably hydrated, you can continue to observe them at home and follow up with your pediatrician the next morning. However, if you notice any signs of dehydration, breathing difficulties, or if you feel uncertain about their condition, please bring your child to a doctor or the nearest emergency room immediately for a thorough in-person evaluation.

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




