Last month, the Care Inspectorate upheld four complaints from the family about Janette's care. It said her personal care needs were not always met, and her medication was not always administered properly.
Nicola said: "I think it's important to stress that these complaints are only to make sure that the home operates at a better level, not only for my mum - but for everyone."
Inspectors have given the home a deadline to improve.
In a statement, a spokesperson for Barrogil House said: "Following concerns raised by Mrs Ritchie's family in June of last year, we took immediate action which resulted in the dismissal of five members of staff.
"A subsequent unannounced inspection noted our good staffing levels and commitment to kindness and respect, and we continue to work closely with all relevant authorities to make improvements - including a revised care plan for Mrs Ritchie.
"The health and wellbeing of our residents is our utmost priority, and we aim to offer the highest possible standards of care and compassion."
Nicola said: "It's difficult for the families, watching your loved one deteriorate in front of you. And it's made incredibly more difficult because I don't get to spend quality time with my mum, because I'm too busy nursing my mum, effectively.
"I don't mind nursing my mum, but I should be spending quality time with her as a daughter, not as a nurse.
"I just want a safe passage for my mum in these last few years of her life."