Any recommendations for must-buy items from Thailand for post-beauty treatments in Korea?

Hello! I'm planning a trip to Korea next month for some beauty treatments. However, my recent work requires quite a bit of aftercare. I'm thinking of bringing some items from Thailand because I'm worried I might not find products I like there.

I was wondering if anyone has done this before and can recommend what to buy from home? I'm considering cooling masks for soothing, silicone sheets for scars, and gel for post-procedure care. Are these good? Or are there other things I should prepare?

I'd love some advice from experienced individuals! I don't want to neglect aftercare because I know how crucial these post-treatment steps are.