Thank you for your query on Healthcare Magic.
I suggest you to go clinic for antiseptic dressing.
And if the wound is deep, suturing has to be done.
And apply an antibiotic cream externally thrice daily with the advice of a doctor.
If he is not up to date for tetanus toxoid
shot, get him tetanus shot.
Therefore I suggest you to consult medical care for further management.
Hope I have answered your query.