Is there anyone who goes for a consultation in Seoul and only speaks English? 😅

Hey everyone, I'm planning to fly to Seoul next month for a consultation about some treatment, but I'm worried about the language barrier. I can speak English, but I'm not sure if it's very good, because I struggle with medical details. Should I try speaking Vietnamese, but I'm not sure if the clinic will support that.

Has anyone had a consultation there in English and gotten along well? Or what should I prepare beforehand to make communication easier? I'm afraid of misunderstandings and missing important information about the procedure or aftercare. 😅 Thanks everyone!