Do you have any advice for someone wearing a thumb splint / wrist brace?

I have trigger thumb and am wearing a splint/brace to keep my thumb immobile. It wraps around my wrist and the splint part keeps my thumb in place.

Thus far, the only issue I have noticed is that my wrist gets a bit sweaty and itchy. I just put cornstarch on my wrist to see if it helps. I can take it off if I keep my thumb from bending, which I think will help to keep it dry.

Is there anything else I should watch for? I welcome any practical advice you may have!