In Seoul, does language become a problem for the presentation?

Hello everyone! I'm planning a trip from Mongolia to Seoul for cosmetic procedures. My English isn't great, and I'm wondering if there are any doctors or clinics that can communicate in Mongolian. Will I need to hire an interpreter? Or is it possible to manage with just English?

For those who have come from Mongolia, how did you handle this situation? What language did you use for communication? I'm really curious about your actual experiences. Should I prepare a list of questions for the doctor in my language to better understand the process?

Can anyone help me with this? Thank you so much!