Is the symptom lighter in summer and heavier in winter, or is the symptom heavier when the cool wind blows? Maybe your lacrimal gland is blocked. You can tell by going to the hospital to see a doctor. I am. I always thought it was trachoma or internal fire. It's no use taking some eye drops to take any remedies. Later, I still have to believe in science. When I went to the hospital, the doctor said that the lacrimal gland was blocked and there was no medication. It's good to have a lacrimal gland after minor surgery! It's only a few tens of dollars, but it hurts a little when it gets through. But now that I'm really okay, you still have to go to the hospital to believe in science!