A fever is an inflammatory response that extends beyond the site of infection and affects the entire body, resulting in an overall increase in body temperature. ... The role of the hypothalamus in the inflammatory response. Macrophages recognize pathogens in an area and release cytokines that trigger inflammation

With fever, the body temperature is 38 degrees or higher.

you can use this Anti high Fever herbs supplement  that will downgrade your fever in a nature way and gain immunity to infections.