I think Gary has given you the perfact advise.
Arnica is THE remedy for any kind of injury.Contusion,concussion ,blunt..even when bone is injured.
Arnica heals the vessels and slowly rejuvinates the tissue.Even bringing back the original color faster and reducing the scar formation.
Symphytum will help at later stage when the primary healing occurs..skin heals and you are waiting for bones to heal and become strong.(IF there is a fracture involved).Symphytum is for faster healing of BONE.
Eup.Per has FELLING as if "Bones are crushed ".associated with High rise Fever.For eg.Flu.So eup is not indicated at all.
Have faith in Arnica.