It's great that you're looking into the options for your mother's care as you consider moving to Donegal. The eligibility for social benefits can vary depending on your specific circumstances. I would suggest that you get in touch with the UK authorities to know what a move would imply for your mother's allowance and pension, as there would be a residency change. I found a section
on the UK government website that may help you claim benefits if you move abroad.
As for your move to Donegal, you should contact the Health Service Executive (HSE)
to inquire about the services and financial assistance available for your mother's care.
Let us know if you need to know anything else about County Donegal, especially for tourism purposes. We're here to help!