I still do this in the most gender neutral way possible, is this no longer kosher?

Lie down on your side with the clogged nostril higher than your clear nostril. Breathe normally and you’ll notice your nostril will unclog after a few minutes, works 90% of the time.

Think of the clog as a mass behind your nose and gravity is shifting it to the middle. FYI it might switch to the other nostril, so it might take a few attempts before you clear both and at the very least you get a bit of easy relief without meds or more aggressive methods.