There must be an abscess. White blood cells destroy whatever’s causing the infection. Some of these white blood cells will end up in pus, which also includes dead skin and dead germs. The body considers pus toxic and will try to get rid of it. But when pus collects in an abscess, it may not be able to drain out on its own. As pus builds up, it can press against the skin and surrounding inflamed tissue, causing pain. Not doing anything will cause the infection to spread or be pushed deeper inside the body, making things worse. So yes, it’s necessary.
