Use an OTC splint
The easiest way to treat and protect a sprained wrist is to try an over-the-counter (otc) splint
They are easy to apply and remove for personal care. An ace wrap is another option, but needs to be applied appropriately to adequately protect your wrist. Otc splints can be a simple neoprene compressive sleeve are incorporate a hardened splint to hold the wrist in a safe position.