Question

how does a fever get lowered with cold compress on the forehead of a patient?

Answer 1

increase in temperature inside the body is reduced by this application.the body temperature decreases by doing so. Just like having a hot mug of coffee during winter reduces shivering by increasing temperature inside the system (body).

Answer 2

Answer:

The cold water absorbs the latent heat from the body and uses this heat for changing its state(though the change is minimum), thus lowering the temperature