Question

Why does a doctor advice to put strips of wet cloth on forehead of a person having high fever?

Answer 1

Doctors advice to put strips of wet cloth on the forehead of a person having high fever to reduce the body temperature. Wet strips absorbs heat from the body and decrease the temperature of the body.

Answer 2

The Doctor will often advice to put a strip of folded cloth which is usually cold and wet. This is done due to the increasing body temperature inside the body which can cause serious issues and raise more complications (such as in jaundice, the high fever can trigger high amount of bilirubin amount only to worsen it's case)
As, a wet cloth, if placed on the forehead balances the inside and outside temperature to keep the immune system in perfect orderly manner.