What do you guys buy for aftercare before your beauty treatment trip?

I'm flying to Korea soon for some minor treatments and I'm preparing a list of post-treatment supplies to bring back. I'm worried about which brands are good or if they'll be expensive, so I'd like to ask you all—what do you usually bring or buy to use after the treatment?

I'm thinking about things like cooling gel masks, silicone scar patches, or some gentle gels. I know that after the treatment, I need to take good care of my skin, but I'm not sure what to prioritize. Does anyone have experience bringing specific products, or any suggestions for how to help my skin recover quickly?

Thank you! I would be very grateful for any advice you can give me. 💕