I did a small project before going abroad. What skincare products should I bring back for the return trip?

Hi everyone, I'm Jing. I'm planning to go to Korea next week for a minor facial treatment, but the flight back home is quite long. I'd like to ask you all, there's usually swelling after these kinds of treatments, what skincare products should I bring back?

I've heard that ice packs are important, but it's not very convenient to use on a plane, right? Has anyone used a reusable cooling mask or a cold spray? Also, do you have any recommendations for moisturizing and soothing products? I'm not sure which ingredients are the gentlest for post-treatment care.

Also, I'd like to ask if facial swelling gets worse on long flights? Are there any tips to help reduce swelling during the flight? I'm a little nervous, as this is my first time. Thank you for your advice!