Lindsay Lohan may be heading back to court again soon. Tracie Rice, who was in a car driven by Michele Peck, the mother of Lohan's assistant, when Lohan chased their car to the Santa Monica Police department on July 24, has filed a lawsuit in Los Angeles Superior Court. Rice, who originally filed the suit last August, added papers with more claims in December, according to the Associated Press. She is seeking unspecified damages. After the incident, Dina Lohan released a statement that said: "We are doing everything in our power in support of Lindsay and I won't give up - this is my daughter and we love her." Shortly after the alleged carjacking, Lohan, 21, was charged with DUI and possession of a controlled substance. Then, on August 5, Lohan admitted she was "addicted to alcohol and drugs" and checked into Utah's Cirque Lodge for treatment. She served an 84-minute jail sentence as a result of her July arrest and a separate DUI on May 26. Rice claims she has spent about $7,000 on medical bills, including a therapist who charges $175 per visit, and lost her $60,000 per year job due to the chase. In the original filing, Rice claimed that Lohan, 21, put she and Peck "at extreme risk of death or injury" until they arrived at the police station, where police met them with guns drawn, and that she "thought she was being carjacked." Lohan recently took a sip of champagne in a party in Italy, but her lawyer says she's "back on track" and is now sober. She's still facing court charges from Raymundo Ortega, a busboy at The Ivy, who is suing the actress for $200,000 in damages after a crash between his van and her Mercedes in Beverly Hills last October. A rep for Lohan couldn't be reached for comment.