How To Treat A Large Blackhead On Nose?

Around a month ago I attempted to squeeze a larger than usual blackhead from my nose which was unsuccessful. Now the blackhead is still there and looks very large like an open pore while the area around the skin looks scarred in a circle like shape. Looking straight on it isn t too bad as it just looks like a blackhead but from the side the skin is raised in a circle and looks very unpleasant. I stopped using benzoyl peroxide on the area a week ago and have been moisturising the area but it hasn t made a difference. The skin of the scar feels bumpy and when I scrunch my nose I can hear a clicking sound from the area. What can I do to speed up healing? Or is it too late being over a month? Thank you.