Yes, apply the ointment directly onto the wound, and rebandage with new bandage once daily. The scab should stay a reddish color. If it starts to really look yellow, this can indicate more pus. Judging from your picture I think it will heal just fine. 
And not every scab on the bottom of a pad requires surgery, many tiny ones heal on their own. Yours obviously needed surgery.
Keep us posted!

And not every scab on the bottom of a pad requires surgery, many tiny ones heal on their own. Yours obviously needed surgery.
Keep us posted!

