Name of the medicine for black spots

According to the link below, blac spots are a sign of healing and no medication/treatment is nessasary.

Black Spots On Goldfish - Goldfish Care Information Diseases and Treatments (http://www.blogcatalog.com/blog/goldfish-care-information-diseases-and-treatments/eb09fe4b72baef9225ae9a0a94cb9f09)

If this is not what you're looking for, perhaps you could provide more info.