Contrary to popular belief, its not the virus itself that is making you feel the flu like symptoms!
But don’t get it twisted, if you didn't have these symptoms, you would undoubtedly die!
Most of the flu like symptoms you get with viruses are actually a side effect of your OWN body waging a war against the virus particles!
Mucous is intended to flush out viral particles(which is why its so infectious), coughs and sore throats come from inflammation in the the body tissues from the damage being done while your body cells broken and destroyed to prevent viral spread
Rashes and boils are concentrations of viral particles and immune cells that have been destroyed and need to leave the body
fevers are literally meant to bake the proteins that coat the viral genetic info so they unravel and get destroyed more easily