Comfrey herb smashed into a pultise and wrapped around your knuckle.
Its was known as bone knit herb for obvious reasons.
Comfrey can be cancer forming if taken internally in large doses,so it is banned in lots of places.
but health food shops or private herbalists are still in the know on who supplies fresh plants.(grows like a weed so buy your own plant).
Anica ointment is an amazing fast help in bone bruise extractions too which can be the cause of continual pains.