Which herb is best for acute cough with yellow phlegm and nausea?

• A. Zhu Ru
• B. Jie Geng
• C. Xing Ren
• D. Bai Jie Zi

Answer: (A)

acute cough with yellow phlegm points to phlegm-heat in the lungs, while nausea signals heat in the stomach. An herb that can clear heat in the stomach and simultaneously transform phlegm to relieve cough addresses both symptoms at once. Zhu Ru, bamboo shavings, is traditionally used to clear stomach heat and stop vomiting, and it also helps transform phlegm to ease coughing. That dual action makes it the most fitting choice when both yellow phlegm and nausea are present.

Jie Geng primarily helps with coughing and phlegm by guiding Lung qi and opening the throat, but it doesn’t address nausea. Xing Ren is mainly for cough and wheeze due to LU cold or dryness, not the heat/phlegm pattern here. Bai Jie Zi transforms phlegm and helps with coughing, but similarly it doesn’t tackle the nausea component.