I recommend Bucheon Duri ENT Clinic.

I recommend Duri ENT Clinic in Bucheon. The clinic is spacious and comfortable. However, the downside is the long wait. When I went around 11 a.m. on a Saturday, there were over 70 groups waiting. If you're planning to go, I recommend the open run. As expected from a popular clinic, they provide excellent care and are very friendly. I'd definitely visit again.