Amomum villosum is the fruit of Amomum villosum, a perennial herb of Zingiberaceae. The fruit is yellow-green from October to December, and it is taken before cracking. The residual fruit stalk is removed and dried in the sun for medicinal purposes. Mainly has the following functions:

1. Bacteriostasis; 2. Antiasthmatic effect; 3. It has the functions of invigorating the stomach and expelling wind. Cardamom oil is very unstable. Even if it is well stored, it is often easy to lose its unique fragrance. It can generally be made into aromatic tincture or elixir.

Amomum villosum is a plant of Alpinia of Zingiberaceae, which can eliminate dampness, strengthen spleen, warm stomach and stop vomiting. Used for internal resistance of cold and dampness, abdominal distension, cold pain, belching and vomiting, and not thinking about diet.

Cardamom is the dried kernel of nutmeg. Warm in nature, pungent in taste, spleen, stomach and large intestine meridians entered. Warming the middle warmer, activating qi, astringing the intestine and stopping diarrhea. Used for deficiency and cold of spleen and stomach, prolonged diarrhea, abdominal distension and pain, eating less and vomiting. Mainly produced in Malaysia, Indonesia, Sri Lanka and other countries, and also produced in the West Indies. In addition, in the past, China only cultivated cardamom in Taiwan Province, Yunnan and other places. In recent years, it has been successfully introduced in Hainan on a large scale, but most of the medicinal materials are imported.