Seriously, how many languages do you need to know for a consultation in Seoul?

Hello everyone! I'm Adelia from Indonesia and I'm planning a trip to Seoul next month for aesthetic consultations. Honestly, I'm a bit worried about the language barrier—I can speak English, but I'm not fluent. So, my question is: is it enough to just use English at clinics in Seoul, or should I learn some basic Korean first? I'm afraid of miscommunication when explaining what I want for my treatment.

Has anyone had consultations there before? From your experience, how many staff members can speak English? Do they have translators or interpreters? Or should I prepare myself with photo references and written notes to make it clearer what I want to do?

Anyway, I'm also considering booking consultations with places that might be able to arrange an interpreter, but I don't know what the standard practice is there. Can anyone share how to communicate effectively? Thanks!