I recommend the Hongje-dong Yonsei 365 Clinic.

I usually go to the hospital near my workplace on weekdays for colds or tonsillitis, but when I suddenly feel unwell on the weekend, especially with a fever or severe cough, I go to the hospital in my neighborhood.

Especially on weekends, most hospitals are open until 1 or 2 p.m., so it can be difficult to find a hospital when you're sick after that time. Yonsei 365 Clinic in Hongje-dong is incredibly convenient because it's open until 7 p.m. on weekends.

I really like Yonsei 365 Clinic because the doctors are all friendly and provide excellent treatment.