According to Now magazine, the star worries incessantly about 31-year-old Andrew Leighton, and is desperate to get him into rehab.
An insider said: “She worries every single day that she'll get a call saying he's overdosed ?and died.
“She and [her brother] Garry discussed what to do and how to get Andrew the help he needs. They're talking about staging an intervention with the rest of the family because he refuses to go to rehab.
“It's all very sad but Cheryl's going to pay for the best treatment available.'