So, day 5 of nasal rinsing with xylitol/baking soda/salt mixture, as advised by my ENT since xylitol is known to break down biofilm. 3 days ago after the rinse a huge thick mucus glob was dislodged from deep inside my nose/sinuses. The day after another one came out (they come out by hacking them into my throat because they're too big to fit through my nose, but you can feel something coming down after the rinse). It felt so good afterwards and since then my nose is actually running like crazy. No thick, sticky post nasal drip all of a sudden, but everything is coming out at the front like it should. It's crazy to be so happy with having a cold, or at least it feels like that. The rinse made everything move, that's for sure. In case you haven't tried the xylitol rinse, give it a try! Starting to think that these globs of mucus (or maybe there are more to come) were stuck somewhere and prevented/blocked normal mucus draining. It's too early to get my hopes up that this is the end of the PND horror, but who knows. Every day stuff keeps coming out. My post nasal drip started after Covid 15 months ago, so maybe covid gave me a sinus infection. Actually staphylococcus aureus was also found, heard that last week after testing the mucus via a swab. So I'm on antibiotics as well now, but the rinse definitely did the trick since I started that earlier than the antibiotics. Good luck!! See attachment for the premixed sachets I use for the rinse. Hope some of you will find relief!