Both are used to "lead fire downward"—what is the difference between Niuxi (Achyranthes root) and Rougui (Cinnamon bark)?
People often ask: since both Niuxi and Rougui can "lead fire downward," what exactly is the difference? Today, let's break it down in detail!
Both of these herbs can deal with "heat" symptoms like mouth ulcers, swollen gums, a dry and sore throat, or a flushed face. Simply put, they "pull" the floating "deficiency fire" from the upper body down to the lower body to nourish Kidney Yang and restore the body's balance of Yin and Yang.
First, let's talk about Rougui (Cinnamon Bark)—its specialty is "leading fire back to the source"! Rougui is pungent and hot in nature, much like a "little sun." On one hand, it specifically treats issues caused by Kidney Yang deficiency, such as weakness in the waist and knees, uterine cold and menstrual pain in women, or a constant chilly sensation in the lower back. On the other hand, it can also handle "floating fire" caused by Yin deficiency, such as dizziness, tinnitus, recurring mouth ulcers, or a constantly flushed face. Why? To use an analogy: Kidney Yin is like a string; if the string breaks, the "balloon" of Kidney Yang floats upward. Rougui acts like re-tying a sturdy string to that balloon, pulling the straying Yang Qi back down to its proper place in the Kidneys.
Now let's look at Niuxi (Achyranthes Root). It also "leads fire downward," but its method is different! Flames naturally flicker upward, which is why symptoms of "internal heat" mostly appear on the head and face, such as toothaches, mouth sores, and headaches. Niuxi acts like a "downward-bound specialist" that penetrates deep into the lower parts and interior of the body. It clears blockages wherever it finds them, directly "driving" the excess fire from the top down. Once the fire is led downward, these ailments naturally resolve!
Traditional Chinese Medicine emphasizes syndrome differentiation and treatment—different symptoms require different formulas to cure the illness. If you have similar conditions, the first step is to look at the tongue coating. Send over a photo of your tongue and your symptoms, and I will provide a free consultation to determine the general direction for your recovery.