I've been watching it in the air, and it doesn't work. Not in the Third Hospital of Beijing Medical University, but in Beijing Hospital of Traditional Chinese Medicine. It's a special needs clinic. I was looking for Dr. Chen Mei at that time. I don't know if he is still here. It's been more than three years since I took Chinese medicine for a month and used it externally, and there is no large-scale recurrence. The effect is a little slow. After taking medicine for a month, there was nothing. After two months, there was nothing. The registration fee of 100 plus the medicine fee probably does not exceed 500.