"She says that her father saved her life, which he did," the source explained. "Jamie is not getting any better, so Britney is taking some time out to make sure she is okay."
The insider said the facility focuses on "wellness" in the Los Angeles area, but insisted it is not a conventional hospital.
The ailing Jamie specifically asked Britney to go to treatment.
"Her father asked her to go, because she means so much to him," the source said.
In November, the 66-year-old father to Britney, 37, Jamie Lynn, 27, and Bryan Spears, 41, fell “seriously ill” after his colon “spontaneously ruptured,” leaving him hospitalized for several months.
And although a press release issued by the Spears camp said that Jamie is “expected to make a full recovery” after “almost dying,” a source close to the pop princess told RadarOnline.com Jamie’s health is not “well at all."
“He is having a lot of health complications that are stemming from his initial ruptured colon,” the insider said.
“She is back and forth to Louisiana, but she is not doing great by any means,” the insider said. “You can see it on her face.”
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Her father’s medical issues have “really taken a toll on her.”
“She is not sleeping well and is really leaning on Sam right now as a source of support,” the source said. “Thankfully, he is there for her as much as he can be.”
On January 5, a spokesperson for Britney said that she has decided to cancel her entire upcoming “Britney: Domination” residency in Las Vegas to care for her ailing dad.
According to reports, Britney checked herself into the facility about a week ago, where she will live for 30 days.