After a minor procedure in Korea, how do I reduce swelling? Do I need to bring any products with me?

Hi everyone, I'm Min. I'm planning to get a minor cosmetic procedure in Korea soon, but I'm a little worried about post-procedure swelling. I've heard there's usually swelling for the first few days, and I'd like to ask how everyone takes care of their skin afterward? Do I need to bring any products from China, or can I just buy them locally?

I've read some posts online, and it seems the most common advice is ice packs and keeping the skin clean, but I'm still a bit unsure about the specifics. Could anyone share their experience? For example, when should I start ice packs, and how often should I do it? Also, what skincare products should I choose—should I go for something extra gentle?

Also, if I fly here and my face is still swollen on my way back, are there any ways to help reduce the swelling? How far in advance should I allow for recovery time? I really want to hear everyone's advice, thank you!