My mouth is extremely dry, and my eyes feel gritty and stiff. I received a prescription for artificial tears from an ophthalmologist and visited a dentist, but the relief was only temporary and hasn't significantly improved. Because of this, I can't sleep soundly at night, and my daily life is very uncomfortable. I looked it up and found that Sjögren's syndrome can also cause these symptoms, so I would like to get a specialized examination. I live near Gangdong in Seoul; if you know of any hospitals in that area that are good at diagnosing these kinds of immune diseases, please let me know.