NCCAOM Herbal Board Practice Exam

Deng Xin Cao is known for entering the Heart and Lung channels. This channel affinity matches its clinical use: it clears heat from the Heart and helps calm the Shen, addressing symptoms like irritability, restlessness, and insomnia that stem from Heat in the upper burner. Because it is cool in nature and soothing in effect, it both drains Heart Heat and supports calm, making it helpful for palpitations with agitation or disturbed sleep due to Heart Fire. The Lung entry complements its ability to ease throat or cough symptoms that may accompany heat in the chest, aligning with its overall purpose of soothing the mind while clearing excess heat.