After six days in the hospital, Lindsay Lohan has been released and is "definitely much better," according to her spokesperson.

Lohan had checked into a Los Angeles hospital on Thursday, after being sick for several days last week (see [article id="1493012"]"Lindsay Lohan Hospitalized, Undergoing Tests"[/article]). She was treated for what her doctor characterized as a "febrile illness," meaning headaches and high fever, her rep said. The actress' fever reportedly rose as high as 103 degrees.

Now that she's home, Lohan is already making plans to return to work, and she'll shoot her postponed guest appearance opposite boyfriend Wilmer Valderrama on FOX's "That '70s Show" this week. She'll return to filming her movie "Herbie: Fully Loaded" next week, while her upcoming movie "Lady Luck," which was slated to start shooting on November 4, will be pushed back to accommodate her revised schedule. As for a third movie on Lohan's plate, "Fashionistas," for which she's slated not only to act in but also co-produce, she's just received the script and won't have to worry about that one for a while, as no one else has been cast yet.

Lohan also plans to spend the next month finally finishing her forthcoming debut album, due December 7. She's about to hit the studio with Rodney Jerkins to record a rock song called "Extraordinary" -- if she can manage to fit that into her already-packed schedule.

"We're just waiting to get into the studio and cut it," Jerkins said. "I know her schedule is crazy hectic as well as mine. So we're going to find that day where we can get it and cut it, probably out here in L.A. or whatever. It should be fun, because she's got this whole thing about, you know, this little bad-girl image that everyone's trying to put on her, you know what I mean? Basically, the record that we did is basically saying, you know, 'I'm not ordinary. Bottom line, I'm different.' "

Lohan's rep said one of the things that made the actress feel better while she was in the hospital was that her first video, "Rumors," made it to #1 on the "TRL" countdown. "It made her really happy," spokesperson Leslie Sloane Zelnick said. "She wants to thank all her fans for supporting her."