12/13/2011 at 04:00 PM EST
Brooke Mueller may finally be getting the help she needs.
's ex wife has checked herself into a "long-term, in-patient treatment center" following a recent arrest
for alleged cocaine possession and assault, her rep Steve Honig says in a statement.
"Brooke has decided to remove herself from the media spotlight ... [so] she can focus on her recovery without distraction," the statement reads. "Brooke's goal is to maintain her sobriety, and she believes this is the best option to reach that goal."
Mueller, 34, will still have custody of her and Sheen's twin boys Bob and Max, says Honig, who adds that he will not be releasing further info about treatment, and that her parents "recognize the importance of maintaining the children's normal routine."
This is not Mueller's first time at a treatment facility.
In Feb. 2010, she sought help
shortly after a huge fight she and Sheen, 46, had on Christmas Day. She also entered rehab during an episode of The World According to Paris
, a reality show on which she costarred with Paris Hilton