What happens when occupational health state you are not fit for work?

[hiredandsqueak]

Dd works in Local Government she has a longterm health condition Ankylosing Spondylitis which causes mobility issues, issues with strength and dexterity, pain, fatigue etc.
She is currently experiencing a flare up of her symptoms and took a month off sick although has been back at work three weeks. She asked for an occupational Health Review as they did supply adapted seating and mouse and make suggestions on how to manage previously and was hoping for more suggestions as she is really struggling.
Today Occupational Health said she is not fit for work and would be sending in a report to her manager who isn't particularly sympathetic or supportive. Dd agrees that she isn't fit for work but as a single parent she doesn't feel as she has much choice (she does receive PIP because of the AS) other than work.
What is likely to happen next?

After 4 months off following emergency bowel surgery / stoma fitted (plus DH having a life-changing illness in between) OH recommended I go part time on light duties. My employer allowed this for 2 months, after which I had to go back full time, even though OH recommended I stay part time until stoma reversal. It nearly killed me and I wish I’d gone to the GP or bowel consultant and got signed off.

The OH report is a recommendation, your employer doesn’t have to follow it. If you need more time off, see the GP or your hosp consultant and see if they will agree to sign you off.