Last year I had a sinus infection for a month and I was afraid I'd end up in the hospital.
It hurt bad. My eye and forehead would swell and throb and if I tipped my head forward and did a Valsalva maneuver gunk would trickle out.
I needed medicine but couldn't afford a doctor so I figured it would either abscess into my brain or go away.
Eventually my body eliminated the infection.
The moral is go to doc.