Former child star Jodie Sweetin's drug problem reached an all-time low when she snorted cocaine shortly before lecturing students on the importance of staying sober.

The ex-Full House actress recalls the turbulent years when she was hooked on methamphetamine and cocaine in her new tell-all tome unSweetined.

The star reveals how she reached rock bottom when she was asked to encourage students at Marquette University in Milwaukee, Wisconsin to avoid booze and drugs - and turned up high on narcotics.

And Sweetin admits she used the money from the Just Say No speeches to fund her habit.

In the book, she writes, "I was back to partying like I was at my worst, spending seven hundred dollars a week on meth, coke. I thought for sure that one of the professors (during a speech at Marquette University in Milwaukee, Wisconsin) would take one look at me and kick me out. But none did. They wanted to hear about the trials and tribulations of Jodie Sweetin, or at least the Jodie Sweetin I had created."

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(This news article provided by World Entertainment News Network)