Maybe not everyone has access to a good vet they can afford. At least she's trying to do what she can with limited resources.
I normally wouldn't mind this comment or atleast would be understanding to not taking it to a vet somewhere in the near vicinity under difficult circumstances. However, when you say you rescue and rehabilitate turtles from the road, you should have a vet, medications(antibiotics) or someone who can test for issues the turtle is going through at your disposal. Just saying.