What skincare essentials did everyone pack after their beauty trip?

Hi everyone! I'm about to head to Korea for a small cosmetic procedure, and I'm a little nervous but also very excited. I've been thinking about what skincare products I'll need for recovery, but there's so much information online it's a bit overwhelming.

I've heard that cold compresses, silicone scar sheets, and soothing gels might be useful, but I'm not sure which ones are most important. I'm also wondering if I should bring them from home or buy them in Seoul. Has anyone been before? Can you share your experiences? For example, which products genuinely helped your recovery, and which might have been less necessary?

I'm also considering my budget and don't want to spend too much on these items. It would be great if someone could tell me roughly what I need to prepare and where I can buy them! Thanks, everyone~