Search "pierce your own tragus safely" and you'll get tons of links and YT vids. I would think the safety of it depends on being super, duper, hyper, incredibly sanitary about EVERYTHING. Maybe better to go to a clean, reputable piercer that you can potentially hold liable for any mess ups. Plus, you'd hate to flinch involuntarily and misplace the hole.
Answered Jan 28, 2012
Edited Jan 29, 2012