Non-approved medication exception to policy

[1969RPOL36]

Is there even a process for this?  I have some pretty significant sinus issues and am looking at taking a new medication that is not approved.  I won’t even consider it if it forces a DQ, but if there is a process to get it approved, I’d be interested in knowing what it is.  The FAA has approved it on a case by case basis, but I also realize that they are much more permissive in that regard.  Any help would be greatly appreciated.

[Smokin]

Have you tried surgery?  The waiver for return to fly post sinus surgery was fairly quick.  I was DNIF for roughly two months from surgery to waiver approved.  Have had WAY less sinus issues since and that was almost 10 years ago.