Why does the body sometimes increase its temperature during an inflammatory response? srry its science

The body does that to fight off infections, if you have a fever it will be harder for a virus to survive.

Histamine increases blood flow to the wound site, and increased vascular permeability allows fluid, proteins, phagocytes, and other immune cells to enter infected tissue. These events result in the swelling and reddening of the injured site, and the increased blood flow to the injured site causes it to feel warm.

I found this answer from online research.