Why does my sinus infection keep coming back after antibiotics?

[LaylaQB]

I’ve been dealing with what seems like a recurring sinus infection for months now, and my doctor mentioned something about a possible biofilm making it harder to treat. I’m just wondering if anyone else has gone through something similar—the antibiotics help for a little while, but then all the pressure and congestion just comes back. It’s starting to feel like a cycle I can’t break.