Properties:

relieve toxicity, kill parasites, stop itching -topically - scabies, ringworm, damp sores, ulcers, carbuncles
tonify vitality gate fire, strengthen yang – interior yin cold symptoms
kidney yang deficiency - cold lower back and knees, impotence
spleen deficiency cold – asthma, constipation (elderly + Ban Xia)

Dosage: 1.5 – 6g.