I had it done in August 2018. It wasn't at the Seoul hospital that many people go to, I had it done at a local hospital. I had the upper abdomen, lower abdomen, love handles, and flanks done. They removed a total of 2500 cc of fat.
For two to three months, the surgical areas were so itchy. The hospital provided aftercare every 2 weeks: 2 sessions of radiofrequency, 3 sessions of medium-frequency treatment, and 1 session with something like a suction cup that sucked it in, but I don't remember what it was called.
After 4 months, there was no itchiness or anything like that. I think the love handles recover the slowest.
But if you gain weight, you do gain it back. I've gained three kilos now, so my flanks and lower abdomen stick out more than when the line was really slim right after surgery. My skin didn't sag much either, and I'm satisfied.