This has helped me immensely the last couple of days as Jamie had a high fever - I actually kept him really warm and didn’t give paracetamol, let the fever run it’s course and after just one night it was gone!

http://mothering.com/health/healing-crisis-dont-worry-mom-im-just-growing?page=0,0

It is reassuring to read that others are doing the same as you.  I have always used this approach to fever, along with drinking or sipping plenty of water.  I sometimes offer chamomilla or chamomile tea if the fever is not reducing over time or they are irritable with it.