New Skin Ain't Growing In-spite a Scar Removal Surgery Being Done? (photo)

Its all a result of piercing a chickenpox over nose back in 2006. Got operated with promising results and its been almost a year now with the operation done sometime last June, I find its no way healing completely. The hole has shrunk somehow along the perimeter but not within. I even tried cream concealer over it, but with sweat, it shows odd. I need a permanent solution to it. Suggestions are very welcome.

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