What should you prepare for post-treatment skincare when traveling to South Korea for beauty procedures?

I'm Oanh, and I'm about to take a trip to South Korea for some treatments. I want to prepare my aftercare products beforehand, but I'm really unsure what to buy and bring. I've looked at online shops, but there are too many options, and I don't know what's truly necessary 😅

I'm considering things like cooling masks, specialized silicone patches, and soothing gels. Can anyone share their experiences? What products have you tried that you found truly effective during the recovery process? Should I prepare anything from Vietnam, or should I just buy everything in Korea?

Thank you all so much! I'm really looking forward to advice from those who have been through this before 💕