If fresh cuttlefish is cooked, the ink-jet package must be removed. Then the bones are not needed, because they are too hard to eat.

However, cuttlefish bone itself is used as medicine and can be bought in Chinese herbal medicine shops.

If necessary, you can wash the cuttlefish bones first, then dry them in the sun, and then grind them into powder for oral administration.

Ask the pharmacy or online about the specific efficacy.