I've seen worse, if you really think it's gone and now it's just healing, then you can dab on an anti bacterial healing cream (not a fan of ointment) and cover with a bandaid at night for a week or so.

during the day I would keep it dry, try a dab of 2% Salicylic acid, which will not only keep it dry but it is a good mild peel that will help fade things

after a couple of weeks you could look to accelerate the lightening by ditching the polysporin at night and dabbing on an AHA at night, like Dan's on this site

Have you had a dermatologist look at it?