Willows, I'll definitely try the comfrey! As to seeing a doctor, it takes three weeks for an appointment at my local surgery and then even longer for an X-ray referral for something non-vital like this, so... I'm a lazy person, I think! (We get a great service for potential emergencies. Non-emergencies, not so much...)
diammie, that's what my mother said too, about how they don't cast it and strap it up instead. I've been trying to rest, but like you, Christmas does make it problematic!

I can bend the bottom joint so it's not so bad now, but bending the middle one still hurts. If strapping it up is the best they can do, then I'll do it myself...