Hope she's feeling better for you this morning.

I wouldn't worry too much about getting her temperature down - as someone has said, it's normal for them to have high temperatures with a viral infection. Your main priority now is keeping her hydrated. If she isn't any better today, I would take her in to your hospital for an assessment in case she needs more aggressive rehydration. You can certainly stagger her panadol and nurofen, but make sure you stick with the directions on the bottl (ie. no more than four doses of panadol and three doses of nurofen in the day). And I wouldn't give the antibiotics until you've had her assessed by the hospital ED, preferably by their paediatrician - I don't think they'll do any good.

Good luck!