Not overlooked - I'm not saying that this is the only technique that can be used if it's shown to provide any benefit whatsoever. If it does work, it's a tool which should at least be considered along with any other techniques that are effective (and may still be abuse, as other people have stated).

It's certainly a tricky subject, I just feel that "does it work" needs to be answered before any other discussion can really take place - if it provides some benefit, then it's potentially abuse, if it has no benefits, then it IS abuse.

I feel that the main problem is, how do you know if a method's effective without trying it? And, at the moment, ARE there better (not nessecarily as/more effective - if this actually is effective) treatments availible?

There's a lot of questions that need answering, and everyone's made a lot of very valid points here.