Rule no 1: Don't be panic
Rule no 2: Treat fever with syrup paracetmol 15mg/kg/dose
Rule no 3: If within one hour fever still spiking, >38oC, I would recommend voren suppository according to body weight.
Cataflam oral drops (weight /4) drops 6 – 8 hourly is equally effective,
Rule no 4: Tepid sponging using towel and cold water.
Wear thin shirts (not long sleeves).
In the event if the first antibiotics is not working, for example, rocephin (50mg/kg/dose), and it had been used for 2 days, the child still having fever, do consider possibility of resistance, (beta lactamases inhibitor ).
I would recommend switching to IV sulperazone or iv Tienam.