Lindsay LohanLindsay Lohan has reportedly begun to revert to her old partying ways - and self-harming - after almost a year her last rehab stint.

According to Star magazine, Lindsay began to party again in August after being spotted “doing lines of cocaine” at a music festival.

A source told the magazine: “Lindsay has a very addictive personality, and her drugs of choice are cocaine and prescription pills.

“She has different dealers in LA and New York. Half the problem is that nobody says no to Lindsay.”

The source claims the following week, Lindsay fell asleep in the middle of a house party in Los Angeles: “She was so trashed from the booze and whatever else she takes that she passed out. It was embarrassing because it was only midnight, and [girlfriend Sam Ronson] had to put her to bed.”

Then at the start of this month, the source claims Lindsay began self-harming again after becoming enraged with jealous when she spotted Sam talking to another woman at the launch of twin sister Charlotte Ronson’s fashion line: “Lindsay threw a tantrum and wanted to fight a girl who was talking to Sam.

“[She] has locked herself in the bathroom and cut herself in the past. Sam is aware of this and has hidden razors from Lindsay.

“Her parents found out that she was hurting herself again and even started planning an intervention. But it never took place because Lindsay got wind of it and her mom, Dina, backed down.”

In related news, Lindsay told the New York Post’s Page Six that she thinks her dad “needs to be on medication to control his moods” after his latest outburst about his daughter’s relationship with Sam Ronson.

In an email published by X17 at the weekend, Michael called Sam a “dark, hideous and a disgusting representation of humanity”, prompting Lindsay to say: “He is out of line and his words show how much anger he has, and it’s dangerous and scary as it reminds me of how he treated my mother and I my whole childhood.

“He needs to be stopped. This is yet another reason why we aren’t speaking.”