Credit: Paul Redmond/

Chynna Phillips is back home from rehab.

"After successfully completing her inpatient treatment for anxiety, Chynna Phillips has happily returned home to celebrate her daughter's 10th birthday with her family and friends." the singer's rep, Lizzie Grubman, told Saturday.

Phillips, 42, entered an undisclosed facility for anxiety treatment about two weeks ago. A one-time member of 90s trio Wilson Phillips, she has three children with husband, actor Billy Baldwin.

An insider told Us the singer was traumatized by last fall's shocking revelations of her half-sister, Mackenzie Phillips -- who claimed that she had been sexually involved for years with their late father, John Phillips of the Mamas and the Papas.

"The whole thing has caused Chynna such stress she needs to rest because of it," the insider told Us.

"I would be lying to you if I didn't tell you that there are going to be some huge obstacles in front of us," Chynna admitted of the family scandal on the Oprah Winfrey Show last fall.