Night shift crud: sinus infections keep coming back, peptides worth it?

Not a deckhand, but I’m on the road 3 weeks a month and my sinuses are a barometer. The only pattern that mattered: I tracked room humidity with a cheap hygrometer plus outdoor pressure swings. My congestion flared way more on big pressure drops and recirced hotel/airport air than on dry cabin air alone. Do you notice it’s worse after crew change/travel days vs. mid-rotation? Also, are you sleeping flat or slightly propped? For me, a wedge pillow cut the morning post-nasal drip nonsense. Peptide hype? I get the temptation, but I’d want a sinus-specific explanation first. Surgery sucks, but infection #6 also sucks.

Hi, brand-new here too (week one), so please take this with a grain of salt. Not a deckhand, but my brother works 14/14 on a dredge and his sinuses always flared around the second week. The one thing he tracked was the AC vent right over his bunk and whether the filter had been changed that hitch. His worst mornings were after the vent blew straight at his face all night. Aiming it away and using a small travel humidifier helped some. I don’t know enough to touch peptides yet. Do you notice it eases on your 14 off and builds back around day 5–7 on? That pattern might be more telling than any supplement.

Been here since the old GLP-1 threads, and I’ve seen this movie. Before peptides, one thing I’d track: sleep debt across the 14/14. I remember a thread last fall where a tug guy’s sinus crap clustered around day 8–10 of his hitch, not the shift itself. His cabin humidity was dropping to like 20% overnight—cheap hygrometer changed the picture. Do you notice a pattern with days into the hitch vs. days off? That’s the question I’d answer before adding anything else.