The Girls Aloud star contracted malaria whilst on holiday in Tanzania with professional dancer, Derek Hough, and spent several days in intensive care.
The Fight For This Love singer reportedly told bosses that she wants to return to the show at the end of the week.
Xtra Factor host, Konnie Huq, is due to interview Cheryl at her Surrey mansion on Friday.
Meanwhile, guest judge Nicole Scherzinger has convinced Simon Cowell to change the over-25s category to the over-28s instead as there were so many talented singers in their mid-twenties.
According to The Sun, an insider told the paper: “There are normally twice as many under-25 singers as over, but with some of the best acts being in their mid-20s this year they wanted to make sure they didn’t lose them”.