LOS ANGELES: Lindsay Lohan will have to attend three therapy sessions a week. The ‘Mean Girls’ actress has been advised by doctors at Cliffside treatment facility in Malibu, California, to have three 50-minute sessions a week with a psychiatrist for the next 16 months to avoid a serious relapse into alcohol and drug abuse.  The 27-year-old star left rehab on Tuesday (30.07.13) following a 90-day court-ordered stint, and medical staff are worried her resolutions won’t hold in the outside world.  In a letter to the judge, Cliffside explained that while Lindsay has ‘’successfully completed her court-ordered course of treatment at the center’’, they believe therapy is ‘’critical’’ to her recovery. –XS