I recommend the dermatology department at Ilsan Maid You Clinic.

Made You Clinic Ilsan Branch is right in front of Exit 1 of Jeongbal-san Station. There is one family medicine specialist.

They also do a good job removing things like melasma and age spots, and they are kind and provide good explanations. Many people who have visited have left reviews saying they saw excellent results from the treatments.

Find some reviews and take a look. It's a place with many really good reviews.

It is a clean, friendly facility with reasonable prices.