You sure picked a poor time to catch that. Those things are slow to heal.
If you're able to hold a rod, have you considered a cast? I saw a guy at Sailor Bar one time casting for steelhead with a cast on and he was doing fine. I asked about it and he fell off his snowboard. Don't remember if it was broken or just sprained but he was casting.

Now, if all else fails, have you considered switching hands? Awkward at first but knowing your upcoming trip is looming in the near future.....
TONY