"The treatment is going good, really good. She's my baby. It's hard for me, really hard. All I wanted these kids to be is happy. The night Michael died Paris was crying and said 'I want to go and see Daddy, I don't want to be without him'."
Mrs Jackson said "not a day goes by" that she does not think of the singer, whom she called "a very good father" and "a good son".
But she admits her style of parenting is different from his - and she has got rid of the masks the children famously used to wear.
She said: "They were sheltered a lot when Michael raised them.
"I had thought about it and I said 'I am not going to raise them like that (wearing masks). But Michael had a good reason. He was trying to protect them."
She said the children were "incredibly polite" and that was down to the pop superstar.
She said: "He instilled good manners, but it's a different generation, of course, and I don't understand the whole social media thing. They are always on their phones."
- PA