Figwort Root

Traditional Use

Primary Actions

• Clears heat and cools the blood - Xuan Shen is a major herb for severe heat with sore throat, fever, toxicity, or blood-level heat that dries fluids and agitates the system.
• Nourishes yin and generates fluids - unlike purely draining cold herbs, it replenishes depleted fluids while clearing heat, making it important in warm-disease, dryness, and post-febrile depletion patterns.
• Softens hardness and dissipates nodules - it is classically used for scrofula, swollen glands, thyroid-region masses, and hard heat-toxin accumulations.

Secondary Actions

• Xuan Shen is one of the better examples of a cold herb that both clears excess and enriches what has been scorched by heat.
• Its salty-softening quality distinguishes it from many other yin-nourishing herbs and explains its repeated use in nodules and throat swellings.

Classic Formulas

• Qing Ying Tang - warm-disease formula where Xuan Shen nourishes yin while clearing nutritive-level heat.
• Zeng Ye Tang - classic constipation-from-dryness formula pairing Xuan Shen with Sheng Di Huang and Mai Men Dong.
• Xiao Luo Wan - hallmark nodule and scrofula formula combining Xuan Shen with Mu Li and Zhe Bei Mu.

Classical References

• Traditional herbology describes Xuan Shen as salty, sweet, bitter, and cold, entering the Kidney, Lung, and Stomach to clear heat, cool blood, nourish yin, and soften hardness.
• Its classical throat reputation is strong enough that it appears repeatedly in formulas for painful swelling, loss of voice, and toxic heat in the upper burner.
• The herb is also famous for the admonition against combining it with Li Lu in older incompatibility traditions.