The first thing you need to understand is that there are several different ways to prepare cuttlebone in a concoction. The first and simplest one is to take the inner shell of the cuttlebone, remove the impurities, brush it with water, dry it in the sun and smash it into small pieces. After this, it is also divided into fried cuttlebone, which is fried to a light yellow color over a gentle fire, and calcined cuttlebone, which is placed in a clay pot and calcined to a burnt black color.
And the three kinds of cuttlebone mentioned above, regardless of their method of preparation, are divided into two methods of internal and external use when taken.
When cuttlebone is taken internally, it is usually decocted into soup or powdered into pills or powder for internal use.
Externally, cuttlebone is usually powdered, mixed with warm water and applied to the affected area.