Thank you for your query,
I advise you to continue the medication as advised by your Pediatrician
Illness like upper respiratory tract
infections are common in children below the age of 6 years due to frequent exposure to infecting pathogens while in school or in play.
If the fever
doesn't subside within 48 hours of antibiotic, revisit your Pediatrician for basic evaluation like CBP, malarial parasite and complete urine examination and further management.
Hope I have answered your query.