Printing with water-based ink means a lot of hand washing, usually in cold (icy!) water, several times an hour, every day. That means dry skin - not a trivial matter in winter, when you use your hands a lot, and they become too sore to do much with.
Cue: cheap home-made lotion. Beeswax and olive oil. I used this recipe. (And you could probably use it to polish your furniture too, if you like that kind of thing.)