the scab fell off on its own with the ink eh? thief!! sorry- couldn’t help it… sounded appropriate in my head at the time…
If I were you- make sure your tattoo is completely healed and go back to your artist to have him/her– THEM- fix it for you- most tattoo artists (if not all of them) will do free touch ups… explain your situation and I’m sure they’ll do it for you no issues =D
good luck