I'm going for self-care in Korea and have some questions about good areas and accommodation.

Hello! My name is Kwan, and I'm planning a trip to South Korea for some self-care and beauty treatments. I've been looking at online reviews many times, but I'm still confused about which area to choose for a foreigner like myself.

I've heard a lot about Gangnam and Apgujeong, but I don't really understand the difference between them or which one is better for checking out beauty spots. Has anyone been there before? Accommodation is also important. I'd like to stay close to the clinics so I don't have to travel far after each appointment, as I might be a bit swollen afterward, haha.

Does anyone have any recommendations or have stayed there before? Please tell me which area is good for someone like me and where is convenient to stay.