Sir, my son aged 9 yrs.wt.43 kg. had chest infection 1 month ago. after some medication chest infection cured.?

sir, my son aged 9 yrs.wt.43 kg. had chest infection 1 month ago. after some medication chest infection cured.but he has fever frm 100 to102 daily.blood test for typhoid, malaria are nagative.urine culture is normal .doc. said nothing to worry its just a viral fever which become long and advice to give only paracetamol when fever goes upward 101. the boy"s all activities are nomal.pl. advice