Is it permissible for a female worker to shave the pubic hair of an elderly woman who is weak of sight and body?

It is permissible for a female worker to shave a woman's pubic hair out of necessity, by analogy with what jurists have stipulated regarding the permissibility of shaving the pubic hair for one who cannot shave it well themselves, and the permissibility of a doctor looking at and touching the necessary area of a patient, and for one who attends to a patient, provided that a mahram is present and that everything except the necessary area is covered.