Why do I have a fever for the last 48 hours without any other symptoms? What are the reasons behind such fevers?

No

As I understand it a fever is a normal reaction to an infection. It seems that many of the “bugs” people get, don’t do well at higher than what a human is normal temperature. It makes a little bit of sense, but now since we combat bugs with other means, the fever is considered an indication rather t....

in that case as mentioned above surgical treatment not required.