Fever is a good thing; it mobilizes white blood cells to fight whatever bug is causing you distress. However, if children are sick and mom, dad, and baby need sleep - and can't sleep because baby is cranky - it's nice to have a natural way to lower the fever and make everyone more comfortable.
Here's the method:
Slice organic lemons round-wise.
Soak the child's feet in as hot of water as they can handle for 5 minutes or so.
Wet wool socks (100% cotton is second best) in cold water. Put a few lemon slices in the bottom of the socks. Put the wet/damp socks on baby's feet. Cover the child with blankets to keep their body warm - keep feet out of the blankets. Keep the socks on for 6-8 hours or so.
This technique helps draw the fever out of the body. If you have Young Living Lemon and Peppermint oils, you can also add one drop each to the bottom of the child's feet.