Adding to her woes, troubled star Lindsay Lohan is suffering from an addiction to prescription drugs, according to her father.

Lohan's father, Michael - who has a history of drug abuse himself - wants to help the 'Mean Girls' actress beat her reliance on prescription drugs as he's terrified she will end up dead, Radaronline reported.

"I'm going to get her off the prescription drugs that she's on. I hate it when people talk about illegal drug abuse because it's not just drinking and illegal drugs that kill you," Michael said.

"Prescription drugs can destroy and kill a person and are sometimes harder to stop. Look at Heath Ledger and Michael Jackson," he added.

Although he refused to say what medications his 22-year-old daughter is taking, he admitted her addiction has taken over her life.

"You know why Lindsay's not acting in feature films right now? Because she can't. Because the girl with all the talent is hidden and buried deep inside this fungus that's grown because of the prescription drugs. She can't be herself," he said.

"When you hug her she's vacant inside. When she kisses or holds me I get chills, and not in a good way - in a bad way," Michael added.

The actress has previously completed three stints in rehab in a bid to get help for her addiction to drink and drugs.