What do you all bring for post-beauty trip aftercare?

Hi, it's Yuki. I'm planning to get beauty treatments in Korea next month and I'm already getting excited preparing for it. What kind of aftercare products do you all usually bring?

I have things like cooling masks, silicone sheets, and calming gels, but I'm not sure what will actually be useful when I'm traveling. I'll be on a plane, staying in a hotel, and the climate will be different from Japan, so I'm wondering what I should prioritize bringing.

If anyone has experience getting beauty treatments in Korea, could you please share what aftercare items you found really helpful, or what you wish you had brought? Your experiences would be a great reference. Thank you!