What is the correct way to use descending incense

Descending Fragrance is also known as descending incense. The correct use of this product for internal use decoction, powdered swallowed or into the pills and powder; external use powdered compress. Descending incense is pungent. Into the decoction need to be after the next.
Descending incense is the dried heartwood of the trunk and roots of the leguminous plant Descending sandalwood. It is pungent in flavor and warm in nature. Attributed to the liver, spleen meridian. It can dissolve blood stasis and stop bleeding, regulate qi and relieve pain. It is used in treating hematemesis, epistaxis, traumatic hemorrhage, liver depression and dystocia (pain in the area of coercion and ribs), thoracic paralysis (stuffy pain in the chest) and stabbing pain, bruises and pains from falls, and abdominal pain from vomiting.
It is not usually used alone in clinical practice, but is often combined with mudanpi and yujin to treat blood stasis and vomiting of blood caused by upward reversal of qi fire; with frankincense and myrrh to treat bruises and pain from bruises; and with houxiang and muxiang to treat vomiting and abdominal pain caused by filthiness in the spleen and stomach.
Descending incense is warm in nature and can dissolve blood stasis, so it is forbidden to be taken by people with yin deficiency and fire exuberance and blood heat. This drug should be used under the guidance of traditional Chinese medicine practitioners. If there is no improvement, please go to a regular hospital for timely consultation, complete the relevant examinations to clarify the diagnosis and standardize the treatment, so as to avoid delaying the condition.