A week after being placed under psychiatric hold, Mischa Barton is "still seeking treatment but making improvements," her rep Craig Schneider said.

Schneider would not elaborate, but said that the 23-year-old actress plans to report to work on her CW series, The Beautiful Life, later this month.

A rep for the show, which stars Barton as a struggling supermodel, says shooting is slated to start on July 31. That's two weeks later than planned.

While the show says the delay was not due to Mischa Barton's troubles, but to "problems with the sets," multiple sources say The Beautiful Life producers are working on a Plan B (i.e. a new character) in light of the actress' hospitalization.

The hard-partying Barton was placed under a 5150 involuntary psychiatric hold (a.k.a. the Britney Spears hold) at L.A.'s Cedars-Sinai Medical Center July 13.

"She's going through a rough patch," says Benji Kohn, producer of her new film Homecoming. "I hope Mischa is OK. My thoughts and prayers are with her."

Barton is said to be coked up and suicidal. Hopefully not. Here's hoping this once-promising actress gets better and that she stars on her show as planned.