Hello
Your mother is having swelling on tne body due to water retention caused by failing kidneys.
You should
consult a nephrologist as she requires a
diuretic to pass the accumulated water.
Pain killers are nephrotoxic and so medicines like proxyvon should not be given.
For pain either
paracetamol or nimuselide is advised,as they are kidney friendly.
Consult a nephrologist as early as possible.
Thanks