On Tuesday she had a stem marrow transplant at the Sydney Children’s Hospital, something that is expected to make her feel sick for a long time.

“So far so good, but this is usually where the horrid few weeks starts,” her mother Kristen Wilson-Mitchell said.

Addison has had 15 blood transfusions, 19 platelet transfusions, three bone marrow biopsies and two operations since she was diagnosed in January.

She was confirmed as having cancer on January 12 this year, and diagnosed with neuroblastoma on January 19.

“She has had eight rounds of chemotherapy over 80 days,” Mrs Wilson-Mitchell said.

“She had a stem-cell harvest one month ago and they were hoping to get three million stem cells, and they got 5.1 million.”

This involved Addison having to sit in a chair for seven straight hours while the procedure was done.

Understandably, Addison’s illness has taken a toll on Mrs Wilson-Mitchell and husband James.

“Initially we didn’t cope well at all,” she said.

“Now we are coping on a day-to-day basis and getting through test to test.”

They have been staying at Ronald McDonald House in Sydney for months and Mrs Wilson-Mitchell’s parents have been looking after their two sons in Moruya.

Ethan, nine, and Bailey, five, are students at Broulee Public School. 

Despite all Addison has been through, Mrs Wilson-Mitchell knows it is only the beginning.

“There is still a long way to go,” she said.

A account under Addison’s name is being held at the National Australia Bank in Moruya if anyone would like to help the family in this hard time.

You can also help by donating to the crowdfunding page Please help Addybear Kick Cancer's Butt.