She's not going to like this next part much either... but fortunately, immobilizing the arm will be the last bit of major pain.

[Colin gives N and Hilda an apologetic look.]

I'm sorry for the pain, by the way... it will get better faster because of it, though.

[He returns to Hilda, and begins positioning the sling, taking care not to move her arm until he has to. There are two rods set into the sling too, and once he wraps it, it will splint the break.]