> She won't do work in the same area of the face more than once a month
I would question the competence of any electrologist placing that sort of arbitrary time limit.
At the peak I had electrolysis 3 times per week, overlapping the same area, from a very experienced electrologist (Shelley Barouh, American Electrology Association board member and previous president). One year after starting electrolysis I stopped shaving - I haven't touched my face with a razor since.