Lindsay Lohan's estranged father says the actress has multiple addictions, including alcohol and the painkiller OxyContin.Speaking to E! Online, Michael Lohan said he spoke to staff members at her latest rehabilitation facility, and is confident they are providing her with proper care.

The 20-year-old actress checked into a facility on May 28, after crashing her car and being arrested on suspicion of driving under the influence of intoxicants. This is her second rehab stay this year.

Michael Lohan was released from a New York state prison in March after serving almost two years for driving while intoxicated and other charges. He said he is studying to be a drug-rehab counselor with the faith-based organization Teen Challenge.