"Let me ask you, kid, what are the uses of purple rubia?"
An elderly Chinese physician stood up, placed his hands behind him, and asked Tang Hao.
Tang Hao immediately answered. "Purple rubia, scientific name Rubia yunnanensis, is a bitter, non-toxic, and cold-natured root. It is commonly used in treating diarrhea. One common prescription is purple rubia soup, which is made by boiling half a catty of purple rubia and two taels of licorice.
"Combined with ginseng, donkey-hide gelatin, and licorice, it can also treat internal bleeding."
The elderly Chinese physicians were surprised by Tang Hao's answer.
'That kid is right!'
"Kid! Let me ask you, what are the uses for peony root?"
"Kid, what diseases can dendrobium cure?"
The elderly Chinese physicians took turns to ask questions.
Tang Hao stood there and answered each of the questions calmly.
