Mischa Barton was hospitalized in Los Angeles on Thursday.
The actress has returned to Instagram after being hospitalized last week.
The 31-year-old actress hopes 'this is a lesson to all young women.'
The actress was hospitalized on Thursday after displaying erratic behavior.
According to a report, the actress was voluntarily taken to a hospital after police responded to a disturbance call from her home.
Mischa Barton was placed under a 5150 involuntary psychiatric hold for two weeks back in 2009.
The actress was less than impressed with her time on the ABC competition series.
The former 'O.C.' star opens up to ET about being a gearhead and her unlikely camaraderie with T-Pain.
The actress censored the shot herself!
Marissa Cooper did shy away from the camera while abroad.
Fans were not happy with the photo the former 'O.C.' star used to accompany her sentimental post.
A source tells ET the new couple had their first "official date" Wednesday night.
The pair went to a romantic restaurant then out to meet Barton's friends.
On Monday, the actress opened up to ET about her experience on the dancing competition show and why she needed a break from Hollywood in 2008.