When you come to Korea for beauty treatments, what aftercare products do you all bring?

Hi everyone! I'm Fei, and I'm planning to get a small cosmetic procedure done in Korea soon, hoping to recover during my vacation. I've been reading a lot of discussions online about recovery, but I'm still a bit unsure about what I should bring with me.

I was wondering if I should buy things like cooling masks, silicone scar sheets, or soothing gels from home beforehand. Or would it be more convenient to just buy them at convenience stores or supermarkets after arriving in Korea? I've heard that there are many recovery product options in Korea, but I'm not sure which brands are gentle enough.

Have any of you had similar procedures done before? What do you usually prepare in advance? Or do you just buy things as needed after you arrive? I'd love to hear about your real experiences, for example, if cooling masks are actually effective, and how to choose soothing products without making a mistake. Thanks, everyone!