Wiganghanuiwon Gangdongjeom is a Korean medicine clinic in Seoul that treats indigestion, diarrhea, reflux esophagitis, and rhinitis. It uses acupuncture and herbal medicine to help restore gastrointestinal function and also examines headaches. The clinic explains that gastrointestinal function can be linked to headaches and chest tightness before starting treatment. Treatment does not end in one visit and requires regular appointments.