Fever belongs to self-protection or recovery system of your body.
It is a stress response of your body to fight against enemies.
Bring down the fever only without removing enemies is not right. That is why so many people will have a lot of lungs system problems for later, such as nasal polyps, asthma, chronic bronchitis, and even lungs cancer etc.
To remove enemies or help your body to remove enemies, the fever will go down itself.