Hello! Zerona is a cold laser lipolysis technique which is not yet scientifically proven for fat loss. It s non invasiveness makes it attractive but the inch loss claims have not been substantiated ( apart from trials sponsored by zerona manufacturers) till date. UAL is useful for mega sessions of liposuction and helps somewhat in retraction of skin after liposuction. If there is lot of redundant skin, excision is the only option. If muscular or fascial dehiscence is present surgical correction is required. In my opinion, you should meet a good plastic surgeon and then decide upon mode of treatment. First it should be ascertained whether the persistent bulge is fat or if is it caused by abdominal muscle weakness. Once the cause is established, treatment planning can be done. Best Regards, Dr. Sharad Mishra