1, the processing method is different: concha arcae is made of Bombyx Batryticatus, Notoginseng Radix, cuttlebone, etc. Calcined concha arcae is made of cuttlebone.
2, the effect is different: corrugated has the effect of removing blood stasis and resolving phlegm; Calcined corrugated flutes have astringent, hemostatic, antacid and analgesic effects.