We really appreciated @Aaron’s advice, however, once EH shaved a part of his leg and wound up with (what I’m pretty sure was) a staph infection. We had a topical steroid for a skin issue I’ve got and used that, but there’s still a scar/patch of pissed off skin where the shaving happened.
I would add: clean the area very well and shave with some shaving cream and a clean razor blade. (I’m sure that’s plenty obvious as I type it, but we were hasty at some point and it turned out poorly for him.)
I actually wonder if trimming leg hair with a beard trimmer would be enough…less irritating than actually shaving.