A close friend has now been off work for 10 weeks with a bad back. She's in a lot of pain and is a leadership scale teacher in an SEN provision for teenager so can't really be in if she's not fully able - it's quite physical work.
Anyway she's seen GP and is on the list to see a consultant. She was having physio but decided it wasn't helping so stopped going.
I've suggested she sees an osteopath who has helped me a lot in the past. It's £40 per session but he's very good at knowing if he can help or not and will tell you if you'd be wasting your money. He might even be able to help with one session. She could afford it if she wanted to but is taking the attitude "why should I?" as she's "entitled" to six month's sick pay.
In her employer's shoes I think I might be inclined to wonder exactly how much pain she's in, if she won't even try this option or anything like it. She's been to see OH and is waiting to see what happens next.