What can be done other than surgery to remove scar tissue on my nose? (Photos)

Epidermal inclusion cyst can occur anytime there is a piercing. They tend to shrink with dilute steroid injections. In that regard, you may benefit from consultation with a cosmetic dermatologist or a facial plastic surgeon. I hope this helps! Sincerely, Dr. Joseph

It's difficult to say from the photos provided, however, the story is consistent with the development of a hypertrophic scar. If this indeed so, then small volume injections of trimacinolone, an anti-inflammatory agent, directly into the bump are likely to shrink it. You would be wise to consult a board certified, cosmetic dermatologist. Best of luck.