Yes I’ve had precisely that problem for several years now but it involves no pain, just numb/tingling little finger.
It originally started as a trapped nerve in my neck, which was indeed painful, but freed itself without any intervention.
But then, without a break, it became trapped in my elbow as confirmed by this electric current test, which **** me was painful.
I was warned that it would be painful but I hadn’t imagine that it could possibly be that bad. I swear that the geezer who did the test was a psychopathic sadist – how can someone inflict so much pain on someone else and yet remain so calm?
I was given some exercises to do but as it never seemed to improve and it causes no pain I eventually gave up.
Sorry none of this is any help to you but hopefully my post will bump it up so that someone with something useful to say sees it.
Oh and I believe that the standard response for trauma pain is RICE.,.rest, ice, compression, elevation.