Wow, are there still people in the world who believe in homeopathy?
In that case, I've got some magic beans for sale if anyone's interested.
Incidentally, the fact that something happens in a hospital doesn't mean it has any convincing evidence. When I was doing physio for a broken ankle, in the early stages, they'd spend 10 minutes of every session doing an ultrasound on the area. While they were doing it, I thought, "this seems like bollocks to me" so I googled it on my phone. Turns out my suspicions were correct, and there's very little evidence that it works. But no doubt the people who first made the machines were keen to find as many uses for them as possible so they could sell more, and most people working in medicine, like everyone else, don't have the time, inclination or access to read endless academic research about the effectiveness of every aspect of their job.