What do you bring back for your post-beauty treatments when traveling to Korea?

Hiii everyone, I'm Quynh from Vietnam. I'm about to take a trip to Korea for some minor beauty procedures and I'm worried about what to bring back for my post-treatment skincare routine. Since I'll be flying for 3-4 hours, I need to prepare thoroughly so my skin doesn't get dry or take longer to heal.

I'm wondering if I should bring cooling masks from home or wait to buy them there. And are silicone scar sheets really necessary? I'm also unsure whether to buy regular soothing gel or something more specialized. If anyone has experience with this, please share! I want to be well-prepared before my trip.

Thank you all so much! 💕