This is interesting....
I had "Endonasal Therapy" and this looks kind of like the same thing although the 2 practicioners seem to be coming at it from different angles. The guy I saw called it "finger sweep" and said you could remove these "adhesions" by aggressively (and painfully) running a finger across this "Fossa of Rosenmuller" while this other guy seems to achieve the same thing by massaging the muscles. I have just started looking at the links so will read more although it looks very similar if not the same thing.