Jade Goody faces an "uphill struggle" to rescue her career after being accused of racism on Big Brother, according to PR guru Max Clifford.
Jade Goody received 82% of the total votes in Friday's eviction
Goody was voted off the show after her disputes with Indian star Shilpa Shetty sparked angry criticism and complaints.
Almost nine million people watched her apologise and deny racism on Channel 4 on Friday, according to early ratings.
Mr Clifford said: "Ironically, the programme that made her could be the programme that breaks her."
Goody made her name on the non-celebrity version of Big Brother in 2002.
She has since earned millions of pounds through TV shows, magazine deals, an autobiography, a perfume and fitness DVDs.
"By putting her in there, they've put her whole career in jeopardy and whoever is responsible for putting her in there obviously is responsible for possibly finishing her career," Mr Clifford told BBC News 24.
"It's not irretrievable, but what she's got to do is to convince the British public and people all over the world that she's not racist, that what happened in the show is no way represents what she's really all about.
"So she's got to try and use the media. But right now the media aren't very receptive to her."
The British tabloid press, which regularly featured Goody in a more positive light before this controversy, have now turned against her.
On Saturday, The Sun newspaper's editorial said Goody's previous image was "a meticulously manufactured lie".
She had shown herself to be "a vile, pig-ignorant, racist bully consumed by envy", it continued.
Goody and Shetty made up before Friday's eviction
Writing a column in the same paper, TV presenter Lorraine Kelly said she hoped Goody would "now disappear into obscurity".
"There really has to be an end to the celebration of stupidity and ignorance", she wrote.
Goody received 82% of the vote after going head-to-head with Shetty in the public eviction on Friday.
On being shown clips of herself by host Davina McCall, Goody admitted her behaviour was "nasty".
"I'm not racist, but I can see why it has had the impact it's had," she said. "I look like one of those people I don't like."
When shown TV headlines of the political fallout and the reaction in India, she responded: "That's intense. I apologise to anyone I offended."
Her comments included calling Shetty "Shilpa Poppadom".
Goody insisted on the show that she "didn't say Shilpa Poppadom in a racial way" and that she did not judge people "by the colour of their skin".
She said: "I'm disgusted in myself for saying what I have just seen myself saying. I do not approve of any of my actions and I do not approve of the words that came out of my mouth."
The audience for Goody's post-eviction interview peaked at 8.8 million between 2245 and 2300 GMT, according to unofficial overnight figures.
The show averaged 7.8 million between 2230-2300, while an earlier instalment from 2030-2130 averaged 7.4 million.
They were the highest viewing figures in Celebrity Big Brother's history and beat the 7.7 million who watched the last non-celebrity final in August - which was Channel 4's largest audience of 2006.
A Channel 4 spokeswoman said: "Given the level of public interest and media attention, it is not surprising that the figures reflect this."
On Saturday, London mayor Ken Livingstone told BBC Radio 4's Today programme: "I think everyone is delighted that we got the result we did last night.
"Otherwise the image of Britain across India, which is the second-biggest investor in London after America now, would have been really damaged and it would have done a lot of harm to people's jobs."
A spokesman for Shetty's family said: "This vote has shown that goodness always prevails, like in Bollywood films.
"This vote was not about just one contestant facing eviction," Dale Bhagwagar told the Agence France-Presse news agency.
"It was a straightforward contest between Shilpa and Jade, between good and bad."