Raw Arisaema Rhizome Classic Formulas … Natural Herb Library

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Strongly dries dampness and disperses stubborn wind-phlegm - Sheng Nan Xing is the unprocessed Arisaema tuber behind later processed Nan Xing products and represents the harshest classical form for severe obstructive phlegm patterns.
Opens the channels and stops spasms - classical use extends to wind-phlegm with numbness, facial deviation, seizures, and stubborn blockage of the collaterals.
Resolves swelling and dissipates nodules externally - powdered raw herb mixed with vinegar or wine is used topically for abscesses, boils, snakebite, and hard painful swellings.
Serves as the toxic precursor for Zhi Nan Xing and Dan Nan Xing - keeping this raw page separate preserves the clinically crucial distinction between external/raw use and the safer processed internal medicines.

Sheng Nan Xing powder with vinegar - raw external paste tradition for boils, phlegm nodules, and painful swellings.
Ru Yi Jin Huang San logic - raw Nan Xing joins heat-clearing external medicinals when swelling, abscess, and toxin need stronger dispersing action.
Sheng Nan Xing pre-decocted with Ban Xia and Tian Ma - specialist wind-phlegm strategy when raw-strength channel-opening action is deliberately sought under close supervision.

TCM Wiki and later materia medica descriptions treat Sheng Nan Xing as the raw toxic state of Tian Nan Xing, warm and strongly acrid-bitter with Lung, Liver, and Spleen entry.
Classical cautions repeatedly stress that unprocessed Nan Xing is harsher, more irritant, and more dangerous than the prepared internal form.
Modern practice guidance preserves raw Nan Xing mainly for external use or for very carefully managed internal decoction after prolonged boiling.