What you do when your child is sick,having fever?

You let your child drink alot and alot of barley water? You force your child to take panadol every 4 hours? or you just like me , besides doing all the above, you also use the thermometer to measure his/her temperature every half an hour or and basically didn't sleep for the whole night. How to sleep when you have to measure her temperature every half an hour ler?
Yes, Xinyi has been sick for few days. About a week ago, she start to develop some mild fever which still not required any medication (not me say one, paed say no need give panadol yet). Her temperature measured at that time is around 37.3C. The fever doesn't go away after few days , instead develop to high fever at the 5th days onward. I start to give her panadol when her temperature is higher than 38C .However, it cannot bring down the temperature instead it goes sky high to close to 40C at night. I brought her back to see the paed again, and this time, paed prescribe the suppository and antibiotic (3 days course), saying that her throat is a bit reddish. He told us to bring her back to see him if her fever didn't subside after she finish her antibiotic. Paed said no need to worry, as xinyi is still as active as usual.
For the next 2 days, i basically just try to measure her temperature every half an hour. Hub said i'm over reacting. But i'm a first time mum, and my xinyi never get such high fever before. I'm damn worried mar. And i become expert of estimating what is her temperature by just putting my hand on her forehead. It is always close with the reading that i get from the thermometer. The suppository can temporally bring her temperature down, but after a few hours, her temperature will go back high. She also start to looks more tired than usual. She nap longer during day time and didn't climb here and there as she normally did. Hub starts to worry too and ask whether we should go seek second opinion.
Today is her last day of antibiotic course, she still had high fever yesterday night and i still have to use the suppository to bring her temperature down. Even this morning, i still need to feed her panadol as her temperature still close to 39C. If she's not getting any better tonight, i will have to bring her back to see Paed again tomorrow.
Damn. Don' have a good feeling if i have to bring her back. I think her paed might want to admit her into hospital for further checking.
Get well soon little princess. Mama and Papa is damn worry ler....