Finger mobility after a cast: how long does it take to get back to normal?

Had a finger dislocation recently, so I was stuck in a splint for a week. Just got it off today, but my range of motion is pretty shot—especially on the one that actually popped out. Anyone got tips on how to get things moving again, or am I just supposed to wait for it to fix itself?

Go see a physical therapist. You'll get that mobility back through some exercises.