Fevers can be very dangerous. A lot of newborn's fevers are connected to the vaccines and jabs that they're accousted with. Sometimes they can lead to fits or they can go a bit blue (happened to a cousin's baby recently). The doctor gave a B shot, I think. And from a recommendation, she gave some Magnesium Chloride. Baby seems normal now. But you need to take immediate action if you notice something is amiss and the fever is too high.

Another tip is to actually put a cool pack/wet towel at the back of your baby's neck - the nape. It is more important to try and keep that part cool than the forehead.