Not a herbalist so not allowed to prescribe in any way....but if you dig up a root of Comfrey about 3" long and one of meadowsweet, about 2" and both thicker than a pencil, scrub them well, no need to remove the little side rootlets on the meadowsweet, then pound them both into a kind of lumpy mush and pour over enough vodka to just cover. Put the whole mess into a jam jar and screw on the lid. Leave to sit somewhere warmish for at least a couple of hours though overnight is better, and then strain. Either use this as a compress soak or turn it into a salve using beeswax and an oil like sweet almond.
This is strong, so be careful, if you are allergic to any of the ingredients, don't use, and don't get it on any mucous membranes.
Some of the old advice was to use Woundwort for small bones that were kind of near the surface, but if you *have* Comfrey anyway...
Hope it all heals well,
Cheers,
Toddy