Good to hear she's picked up a bit! My DS always has a reaction to his needles, generally it's mild to moderate temp for about 3 or 4 days after. I know it's a bit scary, but it is a good sign that their immune system is kicking into action and fighting off the bug from the immunisations, basically doing exactly what it's meant to.

I generally only give panadol if it gets over 38.5, or if he's a bit grumpy and out of sorts. Otherwise I let his body do it's thing. HTH