Cassia Bark
Cinnamomi Cortex
Functions:Supplements fire, assists yang, conducts fire to return to its source, scatters cold, relieves pain, invigorates blood, frees channels. Warms spleen and stomach, eliminates cold accumulation, frees blood and veins. Apply to decline of vital gate-fire, cold limbs and weak pulse, yang exhaustion and general exhaustion, diarrhea and stomachache, cold hernia and renal mass, cold pain of waist and knees, menostasis and abdominal mass, dorsal furuncle, multiple abscesses, upward floating of yang in deficiency condition, upper heat and lower cold.