All the "rot" they contained about ventilation, and how to go to bed, and how to get up, and what to eat, and what to drink, and how much exercise to take, and what frame of mind to keep one's self in, and what sort of clothing to wear, was all gospel to her, and she never observed that her health-journals of the current month customarily upset everything they had recommended the month before.

She was as simple-hearted and honest as the day was long, and so she was an easy victim.

She gathered together her quack periodicals and her quack medicines, and thus armed with death, went about on her pale horse, metaphorically speaking, with "hell following after." But she never suspected that she was not an angel of healing and the balm of Gilead in disguise, to the suffering neighbors.
The water treatment was new, now, and Tom's low condition was a windfall to her.

She had him out at daylight every morning, stood him up in the woodshed and drowned him with a deluge of cold water; then she scrubbed him down with a towel like a file, and so brought him to; then she rolled him up in a wet sheet and put him away under blankets till she sweated his soul clean and "the yellow stains of it came through his pores"-- as Tom said.
Yet notwithstanding all this, the boy grew more and more melancholy and pale and dejected.

She added hot baths, sitz baths, shower baths, and plunges.