I will ask about the Nozoil, thanks. But yeah, anything with Saline is out of the question. My ENT told me to irrigate every two hours after my surgery and after the first irrigation I experienced bleeding for 12 hours and serious congestion. However I continued to irrigate. I ended up getting worse and worse until my ENT and I figured out it was the saline causing my problems. I can't even spray saline into my nose without my nasal passages swelling.
I was going to suggest NeilMed but I see you have already tried saline rinses. If it wasn't NeilMed, i would suggest that. It works for me.
Also, my nose was always very very dry until I tried some drops called Nozoil by Rhinaris. I have to request that the pharmacist order it for me because no one seems to carry it in the store, but it's not a prescription. It's expensive but I now use it just at night before bed.
So, now using NeilMed twice a day and Nozoil at night, my own problems seem to have gone away. Good luck to you!