Hello and thanks for writing in at HCM
First of all your doctor has prescribed you a good treatment for the problem your son is facing. Your son is likely to be suffering for viral fever
. Usually we start symptomatic treatment like Calpol
and wait for 2 days, If fever continues than a antibiotic course is essential to get rid from fever. So your doctor does the right thing by starting antibiotic.
But with antibiotic, please start steam inhalation (if possible) and keep the baby warm and protect him from changing weather.
Hope you have got your answer.