If it is a viral fever
the fever tends to stay for 4-5 days and the symptoms will be their, the purpose of giving the antibiotics is basically to save the child from super infection from opportunistic bacterial infection as the immunity has taken a toll while fighting with the viral infection, ( its like if a country is in war on one of its border, chances are their that the other surrounding countries may start a war on the other front as much of the resources were use on the first war front the other area seams week, the antibiotics will protect on the other front where bacteria may attack but will not help in viral attack!) , the treatment for the viral infection is mostly the soothing effect like cough
relief or fever relief, their are some expensive antiviral
drugs available but they are only effective if take with in first 2 days of viral attack.