Just wanted to provide an update... I've had luck minimizing the amount of "crusts" by doing this vigorous routine for the last few months:

- 2 back to back nasal rinse in the morning (neilmed). I add a small drop of Johnson and Johnson baby shampoo to the first rinse, and use the 2nd rinse to flush that out. I repeat this in the evening.

-i use a few drops of Polaris nasal enallment twice a day following my rinse.

-ive also started heating up the rinse bottle with the water in the microwave for 20 seconds before each rinse. I think this alone has made a HUGE difference.

Doing these things, for the last 3 months I have only had like 2 "crusts"/month and half the time they came out during the nasal rinse. The ones that I did cough up were super tiny and came out on the first cough. I think the summer humidity is helping as well. I always keep my room at 50 percent humidity using a humidifier.