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Chynna Phillips, who checked herself into rehab after suffering from "anxiety" about two weeks ago, is back at home.

Her rep, Lizzie Grubman, tells Us, "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."

Chynna reportedly decided to undergo treatment when her sister McKenzie Phillips' revelation last fall that she had slept with their father became too much for Chynna to bear.

Chynna stood by her older sister's claims, but recognized that the admission was not going to make life easy. "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 told Oprah after the incident became public.