"Relapsing was very hard for me," she told Entertainment Tonight. "I needed a break from what I was going through at home."
Three months ago, Richards, 50, was arrested for public intoxication, trespassing, resisting an officer and battery on a police officer after an incident at the Beverly Hills Hotel. In June, she pleaded not guilty to the charges, according to the Associated Press.
"My arrest was my 'a-ha I get to go away now and rest and take a break from all this," she said. "I don't want anybody to take this wrong, but I truly needed a break from hospitals, family, the pressure. I needed to go away."
"I went in and I got to learn a whole lot about myself," she added. "I dug deep into my past, things that happened to me as a child, good and bad, teenage years, relationships with all my loved ones, where they need to be mended, where they're very powerful. I worked on me."