Stiff Silkworm is the dried body of 4th~5th stage larva of Bombyx mori L. (Fam. bombycidae) died of infection (or artificial infection) of Beauveria bassiana (Bals. ) Vuill.

Action: To dispel wind, to relieve convulsions, and to dissolve lumps.

Indications: Convulsions; sore throat with submaxillary lymphadenitis; facial paralysis, cutaneous itching.