This is an area we’ve studied to some degree. Some studies have found that fever suppressing medications prolonged the illness by a small amount, but other studies found that they had no effect. So if there is an effect, it’s small enough that it’s difficult to detect.
The long and short of it is that our bodies are very sophisticated, and some of the things we experience when we’re sick are byproducts of our immune response, but not necessarily essential to the healing process.
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