Actress Mackenzie Phillips
has pledged her support to half-sister Chynna
after she checked herself into rehab for anxiety treatment. The former Wilson Phillips star, who is married to Billy Baldwin
, was admitted to an undisclosed recovery facility
over the weekend.
Mackenzie has vowed to stand by Chynna as she battles her personal issues, just as the singer/songwriter did for her when she shocked Hollywood last year with the news of her decade-long sexual affair with their father, Mamas and the Papas
founder John Phillips
And the former One Day At A Time
actress is confident Chynna will bounce back from her rehab stint.
Mackenzie tells In Touch Weekly
magazine, "I love my sister so much. She was there for me, and I am here for her... She is so very strong and funny. She is going to be just fine, I know it."
Mackenzie's incestuous relationship with her dad, which started after he raped her on the night of her wedding to Jeff Sessler, was exposed in her memoir High On Arrival
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