Her lawyer, Yale Galanter, confirms she's in a "facility where she can rest, rest, rest" and get "competent medical care for her mind and body." He declines to give the name, but says despite her history of drug abuse, she's not being treated for addiction.
"Brooke did not enter a drug rehab program," Galanter tells PEOPLE. "She has been drug free for six months. Since Christmas day, she has been assaulted by her husband, almost lost her life, and developed pneumonia. She was released from the hospital a couple of days too early, so she needs to be somewhere doctors can treat her if necessary."
Mueller, 32, and Sheen, 44, got into a Christmas Day fight in Aspen, resulting in domestic violence charges and a protecting order against the actor. Mueller subsequently was hospitalized for what was described as a severe wisdom tooth infection that led to pneunomia. She was released Monday.
A source close to her family tells PEOPLE she's now staying at the Two Dreams Outer Banks center, which is described on its Web site as a "comprehensive wellness program providing exemplary care for individuals who dream of recovery from addictive disorders or co-dependent behaviors."
The treatment includes therapy and medical evaluations along with "therapeutic options" that include massages, yoga and Pilates, according to the Web site.
"Brooke is having a massage right now," Mueller's mother Moira Fiore tells PEOPLE. "I insisted she come with me for some stress reduction based on suggestions from her doctors. … I don't want my daughter to have a nervous breakdown."
Mueller and Sheen are scheduled to appear in an Aspen, Colo., court Feb. 8 for a hearing on whether to modify the protective order.
Entertainment Tonight first reported Mueller's stay at Two Dreams.