Oh ouch. That looks both super hot and super painful. I can sympathize as I need both a wrist brace for my dominant hand a good keyboard rest to prevent carpal tunnel and wrist pain. Have you thought of getting finger sleeves? They've these little sleeve brace things for your fingers, and they're used by basketball, volleyball, and tennis players to help relieve joint pain.
This is the most adorable thing I’ve ever seen and I’m laughing but I want them??? You’re a gem, anon. I might slip down to my local sports store and stare at these, wishing I could afford them. XD