What recovery items do you prepare for a beauty trip?

Hi, this is Misato. I'm planning to get a treatment in Korea next month, and I'm wondering what aftercare items I should bring for the recovery period.

Has anyone actually brought items like cooling masks, soothing gels, or silicone sheets? I'm torn between preparing them in Japan or buying them locally... I suppose it would be more reassuring to use familiar products.

I'd especially like to hear about everyone's experiences regarding what items are reassuring to have during the first few days of recovery. By the way, I have sensitive skin, so I understand that calming my skin is important, but is it also bad to pack too many things...? Any advice or shared experiences would be greatly appreciated.