Beauty trip essentials! What post-procedure care products does everyone bring?

Hi everyone! I'm planning a small procedure in Korea soon and I'm starting to pack, feeling a little overwhelmed. I wanted to ask you all, what post-procedure care items do you usually bring with you when you go for cosmetic treatments?

I've heard that things like cooling masks, silicone sheets, and soothing gels are quite useful, but I'm not entirely sure what I actually need to pack. Has anyone been through this and can share their experience? Did you bring everything from home before you left, or did you buy things after arriving in Korea? I'm especially curious if there's anything you absolutely *had* to bring, or anything you regretted *not* preparing in advance.

Also, are there any specific considerations when choosing these products? It feels like there are so many options out there, it's a bit dizzying... I'd be so grateful for any reliable recommendations!