Hey Yating, I totally get the hesitation! I'm from the US and had the same worry about flying all the way to Seoul — like, what if something feels off after I leave, right? Honestly, I think a lot depends on how thorough your initial consultation is and whether you feel comfortable doing follow-ups via photos/video calls if needed. I've heard some people manage aftercare from home just fine, but it definitely adds to the whole cost calculation when you factor in flights and staying longer just in case. Would be curious to hear from others who've done this cross-border too!