Katrina Halliburton said her daughter was just a happy, healthy child, but some more tests showed what no parent wants - it was leukaemia.

Initially, the Halliburtons could not believe it.

"We were just like 'nope. She just has a sore ankle. She doesn't have cancer. She can't have cancer'," Mrs Halliburton said. "The next day, they put us on a plane and here we are in Sydney."

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Six months on Molly is "doing really well" after finishing another block of chemotherapy.

"She has handled it incredibly well," Mrs Halliburton said. "She is so resilient and strong."

After word began to spread that Molly was diagnosed with cancer, the community in Junee immediately began to rally.

The Halliburtons' phones were continually buzzing with offers of support, including to start fundraising. And so, Magic for Molly was created.

Among the town's efforts include the Junee Bakery selling cupcakes with yellow icing to raise money and a fete to fundraise on March 6.

But, Mrs Halliburton said, it did not have to be all about money and encouraged people to donate blood if able.

"In the last seven days, Molly has needed four lots of blood," she said. "The message we want to spread is to donate as often as you can." For more information, go to www.facebook.com/magicformolly/.