I'm no medical expert, but I can recommend a wrist brace/support that I used when I sprained my right wrist a couple of years ago. It's called a Thermoskin Wrist Hand Brace, and it's suitable for sprains and strains. It covers the palm of the hand and the wrist, and it has a metal bar inside to support the wrist and thus relieve the pain. I bought it from the local chemist, and it really does give some relief. If you feel like trying one, make sure that you get the correct size.