Hi there , My son is 3 years old and he is having fever last 3 days with no other symptoms.. at every 6 hour I have to give him Mefatal P . Thn it comes down after hour so 2 hour and after 4 hours again he will hv fever .starts fever from 100 to 102 feren Yesterday we started antibiotics. Three dosage has gone but no change in his pattern Antibiotics name is cavantam bid Pl help me