lol That seems to be a thing with ENTs. My ENT was saying there was an actual study supportive of them vs. what I might read online from people saying they had success with something. But the only study I found didn't confirm they were effective. And I don't recall anyone in the thread on TT saying they were successful that didn't come back later to say otherwise.
I asked her how many of her patients it helped... she was pretty straightforward and said it was hit or miss... some saying it worked and others saying it was a waste of money. I tend to agree that it might be placebo, but hell everything with this condition is a matter of changing your mindset.