Coptis & Rehmannia Formula (fire-draining/reducing formula) EFFECTS: clearing the stomach and cooling the blood; purging fire to detoxify. INDICATION: accumulated heat in the stomach, couple with the head annoyed by teethache; fever of the whole face; thirst with a liking for cold but aversion to heat; gumboil; gum bleeding; swelling and pain in the lips, mouth and cheek. CLINICAL REFERENCE: This formula is often used in treating stomatitis; swelling and pain in the throat; teethache; gumboil; fetid mouth odor; dry mouth, for it has the effects of anti-inflammation, resolving heat, cooling the blood and detoxification. For swollen gums, couple with Sweet Combination(Gan Lu Yin) ; For teethache due to summerheat, couple with Gypsum Combination( Bai Hu Tang ).