my son is 2ys 2 months old, he started having cough n runny nose 15 days back is on medication for the same but no improvement, now since 8 days he s having fever also, every 6hrs he s been adviced to give paracetamol, once after effect of that gets over he s getting fever again i find no improvement, blood test, dengue test, urine test was done everything normal. but no improvement. now since 2 days antibiotics been started, kindly let me know do viral fever last so long, ?? should we do anything else kindly suggest