I'm ambivalent here. On the one hand, these were seriously ill children, some of whom doubtless would have died had they been cared for by a doctor. Looks like there were no medical people available. And, the mothers were not able to provide for the little ones. So, in that kind of case, do you think "anything I do may help"?
But, then it sounds like she went way beyond basic care.
That's a lot of how I see it too. But I think she should have had a nurse there all the time to at least, have a chance to advise. Or somehow network. I'm sure she was inundated with patients.
Because so much of Mexico is indeed, very rural, very isolated. Maybe more in the day.
This book is a classic, I have its Spanish only version, I must have bought it about 25-30 years ago (sigh)... but it outlines some very basic health care. I hope she had some things to help her.
Good heavens, one of the articles says she learned things by google... youtube.... I mean, I can see that in a limited way... mainly for self-care.
I darn sure wouldn't do what she did.
A kid hurts himself badly in a bike accident out, 30-50 miles from town, it's an emergency, maybe there is something I could do.