Macrostem
Onion (xie bai)
Bulbus
Allii Macrostemi
Properties:
The herb is pungent and bitter in flavour, and warm in
nature. It acts on the lung, stomach and large intestine
channels. Being pungent for dispersing, bitter for purging
and warm for clearing and lubricating, the herb can
activate Yang and promote Qi circulation in the chest to
disperse cold accumulation, and promote Qi circulation in
the large intestine to remove damp stagnation. It is
indicated for colic due to obstruction of Qi in the chest
caused by insufficiency of the chest-Yang and for
diarrhea, dysentery and tenesmus due o damp stagnation in
the large intestine.
Effects:
Activating Yang, dispersing lump, promoting Qi circulation
and removing stagnancy.
Indications:
1. To treat colic
due to obstruction of Qi in the chest caused by
insufficiency of the chest-Yang and obstruction by cold,
the herb is often used in combination with trichosanthes
fruit, cinnamom twig and other herbs for activating Yang,
dispersing cold, relieving oppressive chest and promoting
circulation of Qi, such as Gualou Xiebai Guizhi Decoction.
2. To treat
excessive dampness and Qi stagnation in the large
intestine, abdominal pain due to dysentery and tenesmus,
it can be used in combination with phellodendron bark,
coptis root , aucklandia root and other herbs for clearing
heat and dampness, promoting Qi circulation and
alleviating pain.
Dosage and
Administration:
5-10g.
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