She was admitted to the UCLA Medical Center earlier this month as part of her 90-day sentence for breaching the terms of her 2007 probation order.
"My understanding from conversations with her lawyer Shawn Chapman Holley is that Lohan could be released early from the treatment facility," femalefirst.co.uk quoted prosecutor Danette Meyers as saying.
"It is looking as if that is what the health care professionals are going to recommend. How much earlier she could be released I'm unsure of at that."
"I will follow what the health care professional advises. That could involve follow-up treatment for Miss Lohan. However, it is my understanding that it is looking like the health care professionals will be recommending that she be released earlier than the 90 days Judge Revel previously ordered," he added.