The 20-year-old actress said in January she had checked into the Wonderland Center in Los Angeles "to take care of my personal health." Her publicist confirmed in December that Lohan was attending Alcoholics Anonymous meetings. Lohan then said she had been going to the meetings for a year.
"It's so weird that I went to rehab. I always said I would die before I went to rehab," Lohan tells Allure magazine in an interview in its May issue.
Lohan says she decided to enter the addiction treatment facility at the suggestion of her therapist.
Her room was "all white, with a parquet, and it was different! I just felt safe," she says. "I thought, `I'm going to stay here tonight.' And I stayed there. For a month. It was great."
However, the star of "Mean Girls" and "Freaky Friday" says: "I don't know that I'm necessarily an addict."
As for her fractured family, Lohan laments that while she was growing up, she had to intervene in fights between her parents, now divorced.
Her estranged father, Michael Lohan, was released from a New York state prison last month after serving almost two years for driving while intoxicated and other charges.
"I feel like a second parent in the sense that I helped raise my family," she says. "When my friends and family are around me, I feel like they're safe. No matter what happens, we're going to be fine."