What are the best skincare products to buy before undergoing cosmetic treatments in Korea?

Hello ladies! I'm Fatima from the UAE and I'm planning a beauty trip to Korea next month. Honestly, I'm a bit worried about post-treatment care. I've decided to pack a whole bag of recovery and soothing products so I don't have to rely on shops there when I'm not feeling my best 😅

My question is: are there any specific types of products you recommend packing? I'm thinking of cooling masks, soothing gel, and maybe silicone sheets for scars. But I'm not sure if these really help a lot or if there are better options. Also, I don't know if I should pack them from here or buy them there (even if they're more expensive)?

Has anyone been on a similar trip, what products do you regret not packing? Or conversely, what did you pack that turned out to be extra and you didn't need? I'd love to hear your real experiences to make sure I'm properly prepared 💙