That is possible in both viral and bacterial infection.
fever for more than 3 days is not a simple fever and examination is required for the same and you can continue to give the fever medicine like paracetamol and if needed higher medicine like ibugesic / meftal p.
kindly do body sponge and give fluids at regular intervals and regular diet and meet the doctor immediately.
Next Steps
If other parameters in the blood report is normal then it may be viral fever
Health Tips
Remain in contact with your doctor