What do you bring with you for aftercare following beauty treatments in Korea?

My name is Nhi, and I'm going to Korea for a week for some minor cosmetic procedures. I'm worried about aftercare because the distance between Korea and Vietnam is quite far.

I'm planning to buy some things here, like cooling masks, soothing gels, and silicone scar-reducing patches. But I'm not sure what to prepare, where to buy them, or if they're even necessary. Do any of you have experience with this?

I asked at the clinic, and they gave me some basic guidance, but I'd still like to hear from those who have been there. Could you share a list of aftercare products that you found helpful? It would help me prepare better for this trip!