Thanks for writing to health care magic.
oral suspension is not a antibiotic.
It is a non steroidal anti inflammatory drug used for treatment of pain fever
There are various side effects for ibuprofen
as with most of the medicines.
What are the associated problems your kid is having along with fever.
Does he have any cough
or burning urination or frequency of urination or throat pain etc?
Please reply in detail so that we can help you better.