The Veronicas' Lisa Origliasso shares rare video of caring for her mother ...

Lisa Origliasso has shared a rare video showing her caring for her mother, Colleen, who was diagnosed with Lewy body dementia three years ago. 

On Sunday, the The Veronicas singer, 36, posted a tender clip to Instagram Stories, in which she tenderly brushes away her mother's hair from her face. 

Colleen, 71, who is holding a drink Lisa gave her, gazes lovingly at her daughter during the gentle moment. 

Care: Lisa Origliasso has shared a rare video showing her caring for her mother, Colleen, who was diagnosed with Lewy body dementia three years ago. Both pictured

Care: Lisa Origliasso has shared a rare video showing her caring for her mother, Colleen, who was diagnosed with Lewy body dementia three years ago. Both pictured 

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On the same day, Lisa shared a Facebook post she wrote in 2012, when her mother was battling what was then a mystery illness. 

Captioning it, she wrote: 'You've always been my cure for everything. My heart is heavy mummy. My best friend, I'd give anything to go back in time and live there forever. 

'The pain of not being able to change this reality kills me every single day. I'm praying I can be stronger. You are the strongest woman in the world. 

Moving: Colleen, 71, who is holding a drink Lisa gave her, gazes lovingly at her daughter during the gentle moment

Moving: Colleen, 71, who is holding a drink Lisa gave her, gazes lovingly at her daughter during the gentle moment

Memories: On the same day, Lisa shared a Facebook post she wrote in 2012, when her mother was battling what was then a mystery illness

Memories: On the same day, Lisa shared a Facebook post she wrote in 2012, when her mother was battling what was then a mystery illness

'I miss you too much, I miss living with you, cooking together, laughing, gossiping, feeling free, carefree. Everything. I miss the peace of knowing you aren't in pain. 

'You deserve so much more. I pray for miracles. You have the biggest piece of my

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