What should I prepare for a beauty trip to Korea?

Ladies, has anyone who's had treatments done in Korea before have any tips to share? I'm about to book my flight to Seoul in a few weeks and plan on getting some beauty procedures done. But I'm worried about the aftercare once I get home and don't know what to pack.

I'm thinking of bringing cooling masks, silicone scar sheets, and a soothing gel from Vietnam to be safe. But I'm not sure if these are necessary, or if you ladies have any better suggestions? Has anyone had experience with this? What products were truly helpful during the recovery phase?

Also, I'd like to know if these items are easy to buy in Korea, or if I should prepare them in advance? Thank you, ladies! 💕