The 41-year-old designer, known for creating iconic, high-end bohemian-style kaftans, had her first baby girl, Luna Gypsy, in January with her fiance, Welsh musician, JP Jones.

She revealed her cancer diagnosis in a statement on Wednesday, just days before Australian Fashion Week kicks off in Sydney where the latest Camilla collection is set to be the closing show. The designer hasn't confirmed whether or not she will attend the show.

"I start on this journey humble but resilient; I would be lying if I said I wasn't scared but I am fearlessly determined to do whatever it takes by focusing on my body, mind and spirit as I take my first trusting steps towards recovery," Franks said.

"Many of my wider Camilla tribe have already been on this journey themselves and I know will be an inspiration to me as I begin mine.

"As you know, my beautiful daughter Luna arrived a few months ago, and it is her smile and warmth that remind me this is a challenge I will embark on with courage - for her and my fiance as well as myself.

"With the incredible love and support of my little family I have no doubt I will beat this. I am so grateful for those around me, who have already been such an amazing support to me following this news."

The designer said she intends to continue to manage the creative direction of her brand throughout her treatment.

In Australia, Camilla employs 250 people and has 19 boutiques while 1000 work on the brand through her manufacturing partner in India.

Australian Associated Press