Ladies, any recommendations on what to buy for post-beauty trip recovery when traveling to Korea?

Hey everyone, I'm Nhung, and I'm heading to South Korea soon for some minor procedures. I'm feeling a bit overwhelmed about what to pack in my carry-on. I've done some research and heard a lot about using cooling masks, silicone sheets for scars, and gentle soothing gels for the recovery period. But I'm unsure how necessary these are and which ones would be best for my skin.

I'd love to hear from those of you who have traveled to Korea for beauty treatments: what do you usually pack for aftercare? Should I buy these items in Vietnam beforehand, or purchase them there? Are there any specific products you found truly useful, or any that turned out to be unnecessary? I'm worried about overpacking and ending up with things I won't use.

Thanks in advance to all you ladies! Any tips you have would be incredibly helpful.