2. It is a good medicine for astringency and hemostasis, and can treat nosebleed, cuttlebone, blood leakage, bleeding from trauma, etc. It has good hemostatic effect. Cuttlebone is also long in astringency, can solidify essence and stop the belt, can be used to treat spermatorrhea and spermatorrhea, red and white belt. Clinically, cuttlebone can also be used in the treatment of gastric ulcer disease, for stomach pain, acid vomiting, vomiting blood, blood in stool, etc., not only can restrain acid pain, but also astringent hemostasis. It is worth noting that cuttlebone is easy to lead to constipation after a long time of service, more service.