London, Apr 10 (IANS): Actress Lindsay Lohan's friends are urging her to go to a rehab again to be treated for alcohol and drug addiction.

"We are growing increasingly worried about Lindsay. She needs to go back to rehab, everyone that is close to her is urging her to get help," femalefirst.co.uk quoted a source as saying.

"The biggest problem is that Lindsay refuses to admit she has a problem, and she doesn't believe she needs to go back to rehab. Essentially, there is nothing anyone can do as Lindsay can't be forced to go to a rehab, even though it's exactly what she needs," added the source.

Lindsay, who has been to rehab thrice, earlier this year admitted that she feared her substance use would kill her.

"I tried to mask my problems with alcohol, cocaine, and mind-altering substances. Now I'm in a place where I don't need to use anything and I feel emotions because I choose to. I've made some dreadful mistakes but learned from them - that has probably saved my life," she had said.