In Aus Tamiflu is often prescribed. In fact, significantly over prescribed. $100+ for a box of tablets, that someone needs to start taking before we even have actual PCR confirmation of flu virus? Does the benefit outweigh the costs? Probably in elderly or in situations with decreased immunity.
For the rest of people, it is probably good to go through a fever cycle once in a while. Your immune system needs something to run at, or else it can end up attacking itself, or missing cancers. The firm evidence base for this is low but my belief (as a biochemistry major and doc with heavy interest in immunology) is that if you are otherwise healthy and you get the flu, then it is probably doing ok for you. We need to stop pathologising all sickness. It’s normal to be sick sometimes, in fact it’s probably necessary for optimum function.
[0] - quick link from google as I am on mobile but well known to me in my professional capacity - http://www.center4research.org/tamiflu-not-tamiflu/