Hello, Thank you for writing to us at healthcareMagic The injury itself is not much of a worry and you may just an OTC topical antibacterial ointment e.g 2% mupirocin ointment, twice daily, for 5 days, till the wound heals. Bruising is self resolving and requires no particular intervention. However, since this was possibly a contaminated wound, therefore, I would suggest a Tetnus shot, if you haven t had one in the preceding 6 months. The shot is basically to prevent from a potentially life threatening complication of tetnus. Tetnus can happen from relatively trivial injuries, specially puncture injuries with sharps like contaminated nails etc which introduces the bacteria deep into the wound. Regards