Comment by nikolay

It's a numbers game - even if you kill only a part of the pathogen with fever, it actually makes a big difference in the end, since in the initial phase it grows exponentially. Also, another indirect benefit is that when you have a fever, you tend to rest more rather than pretending everything is rosy, and when your immune system works best, it is when you sleep. In the States, I've seen many irresponsible sick people who go to work and take Tylenol so that they can cope better at work, essentially spreading the disease.

In many cultures, instead of giving you Paracetamol/Acetaminophen at the onset of fever, they would actually warm you up to give it a boost.

I know, stoicism is gone - people can't tolerate any pain, any discomfort, any trouble nowadays.