All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
First of all, we ask Allaah to cure your mother as soon as possible and write for you the reward of being kind and dutiful to her, as He is the Most Generous. You should know that being kind and dutiful to the parents is an obligation upon the children at all times, and this is even more confirmed if one or both parents reach the stage of weakness due to old age or sickness.
As regards your question, then you should look for a woman to take care of your mother’s affairs and her needs because the disadvantage of a woman looking at the ‘Awrah of a woman is lesser than the disadvantage of a man looking at the ‘Awrah of a woman. In case this is not facilitated, then it becomes permissible for you to take care of her personal matters and help her in fulfilling her needs like cleanliness and relieving herself and the like, while endeavoring not to look or touch her ‘Awrah, but if this is difficult and you have to touch her ‘Awrah, then it is permissible in this case, because the necessity render the prohibitions permissible and the dire need is like a necessity.
Allaah Knows best.