My job is painful

Augh! I've been threading a loom with linen thread that is really rough. It's meant to be for linen placemats. But it's so rough and tough that in tying up the end of the warp to the stick, pretty much the last step before the resident starts weaving, (as seen in this picture)I wore small but really painful blisters on the outsides of my pinkies and the inside of my pointer fingers. I'm very happy working in the weavery three days a week, but it does hurt sometimes!