yep, 'therapeutic' use of all kinds of things, and not just with dewormers.
I've said it before.....a great deal of what we do is less about the animal and more about making ourselves feel good.......feel that we've 'done something' to help even when there was no problem to begin with.
guilty myself at times.......
Against my better judgment and mostly to placate my overly sensitive wife, I built two 32'x22' loafing sheds here so the cattle would have somewhere to get out of the weather.
I knew dang well they would rarely, if ever use either one and they haven't....maybe a couple times in the last 5 years and then only in freezing drizzle. They're born with a hair covered leather coat, and they don't care if it's 105° or 25°, they're going to be outside 99% of the time.
"Dumb cows" my wife says......