Resolves toxicity, expels wind, and alleviates pain => used topically as an ointment or a wash for skin rash, itching, scabies, tinea, sores, and carbuncles. Also used as a warm gargle for severe toothaches that are classically described as "feeling as if a worm is burrowing in the tooth".
Expels wind, dries dampness, and stops pain and itching => its mobilizing, piercing nature makes it a useful treatment for wind-damp painful obstruction or wind rash.
Recently used in the treatment of a variety of tumors.