True, but cases of fever harming the body are extremely rare. The fact that mammals, reptiles, and even insects, increase their body temperature to fight pathog

True, but cases of fever harming the body are extremely rare. The fact that mammals, reptiles, and even insects, increase their body temperature to fight pathogens suggests that fever confers significant survival advantage and that our null hypothesis should always be that it is helping us unless we have strong evidence to the contrary. I agree that sometimes (rarely) our immune system does get it wrong in a serious way such that medication is crucial (for example, anaphylaxis); however, most immune system misfires are minor and do not justify the risk of medications with poorly understood side effects and interactions. Oftentimes, there is a good alternative to medication. For example, when I have sinus congestion, I can almost always find a head orientation that allows me to breath and sleep.