I would advise against using dermabrasion because it is my impression it will make it more purple. You may however, want to consider a laser treatment that is targeting the vascular component of your scar.
Dermabrasion for purple scar?
About a year ago I fell off my bike and scraped my whole nose and it left a big purple scrape on my nose but its not deep its just the top layer of the skin its smooth now since I have been applying Vitamin E and bio oil on it. I really want to get rid of it because its embarrassing.
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