Is there anyone who goes for beauty treatments in Seoul and only speaks English or Vietnamese?

Hi everyone, I'm Chi from Vietnam. I'm thinking about going to Seoul to get some aesthetic treatment information, but I'm a little worried about communication. I speak English reasonably well, but I'm not sure if it's enough for consultations and examinations at clinics there.

Has anyone ever gone to a clinic in Seoul using only English or an interpreter? I've heard that many places welcome international patients, but I'm not sure if the quality of consultation will be affected. Also, should I find someone to translate from Vietnamese, or is English sufficient?

Anyone with experience, please help me. I want to be well-prepared before scheduling a consultation.