Not so good. My mother treated kidney calculi by a doctor named Huang. She said that my mother would clean the sputum from her throat to the chest wall. Treating stones is very simple. We believed it. After taking it for two and a half months, there is basically no change. He said the medicine would cause diarrhea, but my mother stopped taking it. I asked why, saying that others would pull. I have never seen my mother so special before, saying that my stomach digests so much. Then I took 17 medicine for treating stones, and it didn't have any effect. At that time, I was superstitious about Ni Lao and didn't know where to find a good Chinese doctor. I insist that my mother eat there. Now I want to send medicine to my mother in my hometown. I feel that their doctor gave more money first, but the doctor's parents didn't see it.