What should I pack for post-procedure care in Korea? Can anyone recommend anything?

Hello, my name is Gift. I'm planning a trip to Korea for a procedure, and my idea is to pack personal care items from Thailand to prevent damage after treatment, as I'm unsure if I can easily find these items.

I'm thinking of bringing items like toner, chilled masks, silicone sheet masks, and various wound-healing gels, but I'm not sure which ones will actually be useful. Has anyone traveled like this before? What items should I bring, and what items are truly helpful?

If anyone has recommendations for effective post-treatment care items, could you please share? Thank you.