Amy Winehouse's father-in-law has urged the singer's fans to boycott her music until she seeks treatment for what he called a drug addiction.
Speaking to BBC Radio Five Live, Giles Fielder-Civil said he was concerned that Winehouse and her husband, Blake, would die without medical help.
He said: "Perhaps it is time to stop buying records. It's a possibility, to send that message."
But the singer's father, Mitch, said a boycott would not aid her recovery.
He contacted the Victoria Derbyshire show after he heard Winehouse's in-laws being interviewed.
"It won't send any message to Amy at all, unfortunately. If I thought it would, it would be a great idea," he said.
"The only way out of this is not sectioning them, not locking them up. At some point they are going to reach rock bottom."
Recent photographs of Amy Winehouse and Blake Fielder-Civil appeared to show blood seeping out from her ballet shoes, while Fielder-Civil's face was covered in bloodied scratches.
When asked what he had thought of the pictures, Mitch said: "I thought that here are two people that are completely out of control."
He added: "As a parent it was sickening - worse than sickening, I wanted to die, but I can't die.
"I can't think of things like that because I have another son, I have a daughter that needs me, although she doesn't think she needs me at the moment."
Giles Fielder-Civil said he believed his son and daughter-in-law had been taking cocaine, crack cocaine and possibly heroin.
His wife, Georgette, said she feared for both Winehouse and Fielder-Civil if they continued to take drugs.
"I think they both need to get medical help before one of them, if not both of them, eventually will die," she said.
Her husband added: "We're concerned that if one of them dies, the other will die.
Blake and Amy married secretly during a trip to Florida in May
"They're a very close couple and if one dies through a substance abuse, the other may commit suicide."
However, Mitch Winehouse said he had spoken to his daughter on Sunday and she sounded fine.
"We are not talking about people who are in imminent danger of death," he said.
Mr Fielder-Civil said he wants Winehouse's record company, Island Records - part of the Universal Music group, to do more.
"They could either say: 'Until you sort yourself out we're not doing any more work together,' or they take responsibility and make the pair enter a proper rehabilitation unit, where they can't leave until they're sorted out'," he said.
But Mr Winehouse said that, during a meeting with the label, some people had been "crying their eyes out because of their love for Amy".
In a statement, Island Records said: "We have been doing everything we can to help with Amy's personal problems over the past few weeks.
"She has our full support - professionally, emotionally and financially. We've advised her to take complete rest during this difficult period and have put all her promotional commitments on hold."
Mr Fielder-Civil added that Winehouse should not be eligible to win awards for her music.
"This isn't a personal affront against her, but we shouldn't be condoning her addiction by a rewarding her with these particular awards," he said.
Winehouse is currently nominated for a Mercury Music Prize, an MTV Video Music Award and four Mobo awards for her 2006 album Back To Black.