Otoplasty Asymmetry: Can I Get Minor Adjustment, Revision

This is an easy fix under local anesthesia.  It's simple and straight foward with minimal risk. I would recommend you discuss it with you surgeon.

Sincerely,

Dr Gartner

Differentiating between relapse and under correction is easily done by asking one question- were the ears initially symmetric. If they were, then it's a relapse, if not, then under correction.
Either way, since it has been 3 months, it is reasonable to undergo a revision at this point. Depending on what needs to be done, you may be able to have this done under local anesthesia. Good luck