No Insurance Coverage in Most Cases for Breast Reduction Revision
Insurance companies in general are only concerned about solving functional problems (e.g back or breast pain, inability to wear clothes or exercise, etc). They are not concerned about cosmetic appearance and it his highly unlikely that they will cover any revisions for this purpose. I would return to your original surgeon who will likely discount his services if this was related to his surgery.
It is doubtful insurance would cover a revision after breast reduction.
I would be surprised if an insurance company covered a revision after breast reduction. I personally do not charge a professional fee for revision is in my patients.
Sorry you are having a problem here. It is doubtful insurance will cover either liposuction or coolsculpting to refine this area. Keep your surgeon in the loop and report any symptoms this may be causing you. All the best, "Dr. Joe"