Olivia Newton-John has given fans an update on her health as she battles cancer for the third time in her life, revealing her cancer tumours have shrunk.

Speaking exclusively to the Herald Sun, the Grease star credited the use of medicinal cannabis and natural therapies for the unexpected turnaround.

“When people hear metastatic breast cancer or cancer there’s still this stigma that people don’t believe that you can recover, well you can,” Olivia told the news outlet.

“There are ways. I know lots of people who have been given really terrible diagnoses who have done really well with the right treatment and they’re not always chemo and radiation either.”

She’s previously described cannabis as a “healing plant” and she said using it isn’t exactly what people typically envision.

For Olivia, it’s not about getting stoned but cannabis helps her manage symptoms that came with a cancer diagnosis. She said in September last year: “Along with my other treatments, the cannabis really helped me. I was able to wean myself off the morphine with cannabis, which is a safe way to do it. You don’t die from cannabis.”

She also said cannabis had the potential to help people manage a lot of illnesses and said she had a lot of belief in the drug.

Olivia was initially diagnosed with breast cancer in 1992, resulting a partial mastectomy and chemotherapy.

She then went into remission until 2013 when the cancer returned, with the actress undergoing another round of treatment. However the star was diagnosed once again in 2017 after a tumour was located in her lower spine.

It comes less than two weeks after it was announced the singer will perform at the Fire Fight Australia concert next month, alongside a host of other huge names.

John Farnham, Daryl Braithwaite and Tina Arena, while Queen and Adam Lambert will headline the one-off show which will take place on Sunday 16 February. Other huge names include Alice Cooper, Guy Sebastian and Eurovision star Jessica Mauboy.

Following the news, Olivia took to Instagram to share the announcement with her followers. She said: “Australia, I’m proud to announce I’ll be performing at #FireFightAustralia alongside an incredible line-up of artists to raise money for national bushfire relief.

“I hope you can join us for this special day to raise much needed funds for bushfire relief.”

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