Consultation in Seoul without Korean—just English or do I need special preparation?

Hello everyone! I'm Cinta, from Indonesia, and I'm planning to have an aesthetic consultation in Seoul next month. But honestly, I'm a bit nervous about the language barrier—my English is decent, but I'm not sure if it'll be enough for detailed discussions about procedures and expected results. Has anyone experienced this? Do clinics in Seoul generally have English-speaking staff, or should I bring a translator? Or are there any specific apps that can help?

The reason is I want to make sure I fully understand what will be done and avoid any miscommunication. I'm also curious—has anyone consulted using Indonesian, or is it strictly through English? I'm worried important details might be missed due to the language barrier. Thanks in advance! 🙏