Bobbi Kristina Brown is "doing a little better each day" following her mother's burial.

Her mother, Whitney Houston, was laid to rest on Sunday in New Jersey just over a week after she was found dead in the bathroom of the Beverly Hilton hotel in Los Angeles February 11.

Bobbi Kristina was hospitalised after having an emotional breakdown on the day of her mother's death. She also disappeared for a few hours and was reportedly found "doing drugs" in a hotel following Whitney's memorial service Saturday, leaving her family worried sick.

Numerous people have expressed their concern for Bobbi Kristina's welfare, but she is coping all right.

"She's doing okay," a source told People magazine. "She's still obviously got a lot to deal with but she's doing a little better each day, and being back home in Atlanta seems to be a good thing."

Ellin LaVar, Whitney's former hairstylist, believes that Bobbi Kristina will power through her grief.

"She is a strong girl," she told the publication. "I think with support she will make it through this."

Bobbi Kristina reportedly spent time in a rehab facility early last year, but representatives have declined to confirm the stay.

Whitney fought a long battle with drugs but her cause of death won't be known until toxicology tests come back.