Singer Russell Watson has completed a five-week course of radiotherapy to treat a recurrent brain tumour.
Russell Watson first discovered the tumour in 2006
The 41-year-old said the intensive treatment was "no walk in the park" and is facing regular scans to determine whether it has been a success.
Writing in his blog, the star said the side effects had caught up with him, but his hair was "hanging in there".
Watson had an operation in 2006 to remove the tumour, but had emergency surgery in October after it grew back.
The singer - know as The Voice - also wrote: "I've had my moments under than machine where I just wanted to stop the bloody thing and walk away."
Thoughts of his children and the support of friends and family kept him going, but he admitted: "I'm not out of the woods yet."
His manager Giles Baxendale said Watson's eyesight and voice did not appear to have been damaged by the radiotherapy as feared.
Russell Watson was discharged from hospital in October
The treatment left him "a little tired a bit drained, but upbeat that it's finished", he said.
The treatment was carried out at Manchester's Christie Hospital.
The singer has not appeared on stage since the surgery in October, which was performed through his mouth.
"We're hoping at some point he will return to doing what he loves to do," Mr Baxendale said.