Tokyo Violet Herb Classic Formulas — Natural Herb Library

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Clears Heat and resolves fire toxin — carbuncles, abscesses, furuncles, deep-rooted sores, and venomous snake or insect bite; one of the premier fire-toxin herbs in TCM
Reduces swelling and disperses nodules — lymph node swellings, breast abscess, and scrofula from hot-toxin accumulation
Anti-inflammatory for the throat and eyes — tonsillitis, pharyngitis, acute conjunctivitis, and orbital cellulitis
Cools Blood and clears skin conditions — skin eruptions, urticaria, and furuncles from Blood Heat

Wu Wei Xiao Du Yin (五味消毒饮) — classical formula for fire-toxin patterns; Di Ding combined with Jin Yin Hua (金银花), Pu Gong Ying (蒲公英), Zi Bei Tian Kui Zi (紫背天葵子), and Ye Ju Hua (野菊花) — one of the most important and widely used formulas for acute infections, carbuncles, tonsillitis, and furuncles; from Yi Zong Jin Jian (1742)
External poultice: fresh Di Ding herb pounded with garlic and applied to carbuncles and snake bite as emergency first aid — classical folk application documented in multiple regional materia medica

Ben Cao Gang Mu (Li Shizhen): 'Di Ding (地丁, earth nail) resolves fire toxin, disperses swellings, and draws out poisons from deep sores — applied fresh externally and taken as decoction internally; very effective for carbuncle with intense heat and deep root'
SPECIES NOTE: The Latin Herba Violae Seu Gueldenstaedtiae acknowledges two distinct plants used interchangeably as Di Ding — Viola yedoensis Makino (紫花地丁, Zi Hua Di Ding; Violaceae; the official Chinese Pharmacopoeia 2020 species) and Gueldenstaedtia multiflora Bunge (甜地丁, Tian Di Ding; Leguminosae; used in northern China as a regional substitute); both share the bitter-cold heat-toxin-resolving profile though Viola yedoensis is considered the primary source