I have only been here a couple of years, but I agree we are definitely seeing a big improvement as we encourage people to advocate for themselves and get on the 7% saline.
I think it probably falls in the same "low tech" category as using ice for post-surgical swelling - nobody profits from it, so there are no drug companies promoting it, and it takes a forum like May Connect to publicize it and get a lot of people benefiting from it.
My husband, who had a retirement career as an EMT, often says if drug companies could figure out how to charge for ice, it would cost $10 a cube - it's that good for swelling.
Sue