I had similar wrist pain a few months ago. It got so bad a couldn't hold anything with my hand. I used a wrist brace and also used a 'my breastfriend' feeding pillow to give my wrist a break while I was feeding. It healed on its on (took about 2 months from memory), but I had to be very mindful to rest it where I could.

Goodluck, hope it clears up for you soon.