Most of the fevers are caused by infections(viral or bacterial) or inflammations. For the body to fight these infections/inflammations, it needs resources and these resources are normally diverted to and distributed among various bodily functions. When you rest, most of these resources can be dedicated to fighting the infections or whatever is causing the fever.
When the cause of your infection/inflammation
We are all aquatic organisms inside out. The sea is inside our body. All our activities require water. When you have a fever, you need more water
So drink lots of fluids. During a fever, if you drink a particular
If your fever doesn’t subside with these two very important measures, seek medical attention.