It is used in clinical decoction or in pills, and should be used with caution in cases of Qi deficiency, blood and fluid deficiency and pregnant women. As a commonly used medicine in clinical practice, its effects are as follows: 1) regulating qi: it is good at moving qi and is usually used for spleen and stomach disharmony, fullness, abdominal distension and constipation caused by qi stagnation; 2) dispelling dampness: it can be used for poor appetite, fullness, loose stools, weakness, drowsiness and greasy moss caused by dampness in the middle jiao. The specific medication should be combined with clinical practice and guided by a doctor’s interview.