It recounts her time in hospital since Apr 2011 for two operations to remove brain tumours.
Becky, 11, from Raheen, had her second operation last month.
She kept a daily diary which is now a poignant read titled: The Little Girl With The Big Headache.
Becky and Bronagh O’Neill, 16, from Ballybricken, who also underwent surgery for the removal of a brain tumour, were honoured by Limerick County Council for their courage.
Becky’s dad, Michael, said: “Every evening in hospital she wrote down her day’s happenings in her little diary and we put it all together in this lovely little book.
“She had a tumour removed in Apr 2011 and another tumour was discovered which was removed last month. It has been a difficult year, but she is a great little girl.”
Becky said writing her book was better fun than school work.
“My sister Rachel [aged 14] helped me with the book. My friends were the doctors and nurses. I had my birthday a couple of weeks ago and I got a puppy.”
Her mum, Mary, said Becky was undergoing chemotherapy at home in tablet form.
Bronagh O’Neill underwent surgery in Beaumont last year for the removal of a brain tumour, weeks before she sat her Junior Certificate.
Bronagh, who is going to Laurel Hill secondary school in Limerick, said: “It is very nice of the county council to give us this reception.
“You have to be very positive. There are some days you say to yourself ‘I can’t do this’, but you have to be positive and that is very important along with the support of my family and friends.”
Her dad, Paddy, said Bronagh was very well following her surgery.
“She is a fighter.”