Hi,
Skin tags are harmless. Why and how skin tags form is not entirely known, but there are correlations with age and obesity.
Treatment options include:
Cauterization: with an electrolysis instrument
Cryosurgery (freezing)
Ligation: cutting off blood supply
Excision: with a scalpel, or other surgical instrument
Each of these treatments is considered minor surgery, typically performed by a physician in the office. In some jurisdictions, an aesthetician is permitted to remove them with electrology.
These are superficial procedures, so there should be no problem to the ear.
ref:http://en.wikipedia.org/wiki/Skin_tag