"Yangyang, are you suggesting that your Granny Zheng has been poisoned?" Old Master Zheng asked.
"Yes." Ni Yang nodded slightly, "That's one interpretation. Granny Zheng's cough has been going on for ten years, though there were times when she got better. It worsened suddenly starting from last year, didn't it?"
"Correct." Granny Zheng nodded, "It started from last year."
Ni Yang continued, "Has there been any change in your diet since last year?"
Granny Zheng said, "Other than three meals a day, I drink tonic medicines, the ones your grandfather Zheng just mentioned."
Old Master Zhao hurriedly asked, "How severe is Granny Zheng's condition now?"
Ni Yang's expression was somewhat solemn, "It's serious but not too severe. However, if the toxins in Granny Zheng's body are not removed in time, there's always the risk it will deteriorate, putting her life at risk."
Old Master Zheng turned pale, "Yangyang, do you have a way to detoxify her?"