hi doctor my son aged 2 and half yr old. he is started going to play school. after joing to school, he is gwtting fever one in a month. he is having 3 days fever then giving paracetmol 250 mg and citrizine. after 3 to 4 days he is normal as usual. even in the fever time he is active like playing , walking .. i checked with the doc he is normal active ... it is normal symtoms of viral fever and nothing to worry. but why he is getting frequent fever.