The actress, who suffered complications due to asthma, was "treated and released, and is doing fine," Lohan's rep tells E! News.
Lindsay's father, Michael Lohan, told the New York Daily News this isn't the first time the starlet has had significant issues with asthma, saying, "She's fine, but she had a bad case of asthma as a kid, so she has to take these things seriously. When she was a kid, we almost lost her a couple of times because of the asthma."
Michael said a lung infection had been bothering Lindsay for weeks prior to her hospitalization.
—Additional reporting by Katie Rhames