Neck blemish 6 months post-op, why won't it go & what can I do? (Photos)

It appears that the platysma muscle has separated again (if the two muscle bellies were approximated during the initial surgery). I would wait a full year to permit adequate healing, but this may require opening the neck again to tighten the muscle in the midline of the neck. I would recommend finding a board-certified plastic surgeon (American Board of Plastic Surgery) with extensive experience in facial aesthetic surgery.

There is a possibility that there is a stitch under the skin. It’s hard to tell if it’s under the skin or in the skin itself and needs to be examined by a surgeon to determine what it might be.