It is difficult for me to see the red spot on your nose clearly. To me it does not look like an acne scar. It looks more like a fibrous papule of the nose or a Spitz nevus. Please see a dermatologist. Both of these conditions are treatable and the spot can be shaved off and / or removed with a laser with no or little scarring.
A. David Rahimi,MD,FAAD,FAACS