What should I do about a stitch that is coming out from otoplasty that was done forty years ago? (photos)

The stitch on the left ear started working its way out about 15 years after surgery. My Doctor at the time pulled it out and I have a small round indentation where the stitch came out. Now Forty years after surgery on my right ear in the exact same place it is happening again. I keep having bouts with MRSA , not sure if I should have this one pulled out or just keep it clean and let it work its way out on its own. My glasses are really irritating it.