When slaves get hurt in the mines, the overseers don't send for an apothecary.
The reckless axe swings and loose rocks that fall from the mine shaft leave marks that become infected and swollen. The Silver-Blood mine is a work prison, a dungeon of labor. The ones who work get privileges; the ones who can't, don't.
The older Reachmen know plant mixtures that help close wounds and stave off illness.