Bobbi Kristina Brown's doctors have no ''hope for change'' in her condition.

The 21-year-old aspiring actress - the daughter of Bobby Brown and the late Whitney Houston - is currently on life support at Emory University Hospital in Atlanta after she was found facedown in the bath at her home last weekend, and her cousin, Jerod Brown, admits the ''odds are against'' her pulling through.

He posted on Facebook: ''Though it seems the odds are against her, though doctors don't see any hope for change, though we might want to play detective and find out how she got there, though it looks impossible for her to stand again STILL PRAY FOR BK. (sic)''.

It has been reported that doctors have advised Bobby to turn off his daughter's life-support machine but the ''deeply religious'' singer and his family are refusing and hoping for a miracle and want people to pray for Bobbi.

A source said: ''Bobby is the one who will make the decisions. But Bobby has told us, 'If America thinks she is dead, they will stop praying.' And at this point, we want people to pray for a miracle.

''Losing Whitney was hard, but this is a million times worse. To lose Krissi the same way would devastate him.''