Inside Lindsay Lohan's Medicine Cabinet

Another day, another series of embarrassing revelations for Lindsay Lohan.

Court records released this afternoon detail a variety of powerful prescription medications that the troubled starlet said she has been taking "for as long as she can remember."

The report comes one day after the "Mean Girls" star was sentenced to 90 days in jail and 90 days of rehab for violation of probation for missing alcohol education classes.

VIDEO: Lohan conveys an explicit message on her fingernail while in court.Play
Lindsay Lohan's 'F**k U' Message

In six screenings since May, Lohan, 24, tested clean of any illicit drugs. But she did say she takes Nexium, Zoloft, Trazadone, Adderall and "sometimes Dilaudid for dental pain," the probation officer's report said.

She twice tested positive for amphetamines and once for an opiate, but because the drugs were Adderall and Dilaudid, they did not violate her probation, the report said.

The report also said she reported for supervision "as instructed" and kept a "positive" attitude.

Hours before the report was released it was also revealed that at Wednesday's sentencing, the actress had written an obscene message to the judge on the nail of her left middle finger.

Just as the tabloid sensation was making an impassioned speech to a California judge about respect for the court and taking responsibility for her actions, she was also apparently sending a secret, defiant message in tiny type on her fingernails: "F**k U."

VIDEO: Lindsay Lohan cries while being sentenced to 90 days in jail and 90 days in rehab.Play
Lindsay Lohan's Emotional Sentencing

Magnified images of Lohan's fingers revealed the words today, casting doubt on her remorse over her parole violation for a 2007 DUI conviction for which she was on trial Tuesday.

The 90 day sentence is an unusually harsh one for a relatively minor offense, California defense attorney Mark Geragos said today.

"I just think this sentence is utterly ridiculous," Geragos, who is not involved in the case, told "Good Morning America." "The fact remains that if she was anybody else, Lindsay Smith, that she wouldn't be treated this way. ... This is a completely outrageous sentence in terms of her violation."

Before learning her fate, Lohan pleaded her case to the court -- aware that she might be shown special treatment.

VIDEO: A judge recalls arrest warrant after Lindsay Lohan missed a mandatory court date.Play
No Arrest for Lindsay Lohan

"I wasn't expecting any special treatment aside from the understanding that I have to provide for myself, I have to work. My schedule is, unfortunately, very different," she continued. "Having said that, I did do everything I was told to do and did the best I could to balance jobs and showing up" to her court-ordered alcohol education classes.

She concluded her monologue with a note about how seriously she was taking the proceedings.

"I'm not taking this as a joke. It's my life, it's my career," she said. "I've learned from my experiences, I take responsibility for my actions. I've tried to do the best I can."

When the verdict came down, Lohan was visibly stunned. She broke down sobbing, barely sputtering a "yes" when Revel asked if she understood and accepted the terms of her probation. Revel ordered Lohan to surrender on July 20 at 8:30 a.m. PT.

Both Geragos and family therapist Terry Real said they disagreed not with the verdict, but with the punishment.

"I don't disapprove of the court mandated rehab," Real said. "[But] jail is hardly the treatment of choice for drug and alcohol addiction."

Though Lohan is unlikely to serve the full 90 days in prison -- due to the "overcrowding situation" in L.A. jails -- any other woman convicted of a similar charge would serve mere hours, Geragos said.

"If she wasn't Lindsay Lohan, she wouldn't do more than about six hours," said Geragos, calling the sentence "almost draconian."

Referring to the explicit message on her fingers, Geragos added that there's no restriction by the U.S. Supreme Court on wearing profanities.

Lohan in Court: 'I've Tried to Do the Best I Can'

After the hearing, Lisa Bloom, the attorney for Lohan's estranged father, Michael, said that if Lohan had followed their advice and gone to rehab, she might not be facing jail time now. Michael Lohan has long maintained that his daughter is addicted to prescription drugs.

"If she had gone to rehab anytime over the last several months, when we were begging her to go to rehab, she could have avoided all of this," Bloom said Tuesday. "Where she belongs is rehab. We don't believe incarceration is the place for addicts."

Before the verdict came down, Lohan said she was doing her best to comply with her probation.

"I just wanted to take a minute to say that, as far as I knew, I was being in compliance with my programs," she started. "When I asked to leave town [the alcohol ed program] would give me permission to leave town."

After tears started rolling down her cheeks, Lohan held her head in her hands as she tried to compose herself. She went on talking, and at times, sounded incomprehensible.

"I know that I was ordered to go once a week. ... I was working, mostly, I was working with children, it wasn't vacation, it wasn't some sort of a joke," she said, sniffling. "I wanted to make sure that I would come back here making you happy and the court system."

Lohan's Tuesday hearing lasted for hours. Shortly after it began, Revel demanded to see documents detailing Lohan's performance in the Right On alcohol education program. Revel called a recess so that prosecutor Danette Meyers could review the documents.

Meyers went to great lengths to show the degree to which Lohan violated her probation by failing to attend weekly alcohol education classes according to the schedule set by Revel.

"She knew [the prosecutor] would be asking for jail time and yet still after all that, she didn't comply with the court order and the court does find her in violation of her probation," Revel said.

Also at issue: Lohan's SCRAM -- secure continuous remote alcohol monitoring -- bracelet, and whether the fact that it went off on June 7 should be considered in determining whether or not she violated her probation. Ultimately, Revel decided the hearing would focus only on Lohan's alcohol ed class attendence, despite the fact that SCRAM experts flew in to potentially weigh in on the device.

Two representatives from the Right On alcohol education program testified at the hearing. Cheryl Marshall, co-owner of Right On, said that Lohan failed to attend the required minimum of one class per week nine times, but Right On never notified the judge that there was a problem. She added that Lohan came up with a variety of excuses for missing class.

That didn't sit well with prosecutor Meyers.

"[Lohan] clearly violated your orders," she told the judge. "She was to abide by all rules and regulations of the court."

ABC News' David Alpert and The Associated Press contributed to this report.