Anise is a traditional Chinese medicine, also known as star anise, which is the dried mature fruit of the plant Anise, family Magnoliaceae. Anise is a warm medicine with pungent flavor and belongs to the spleen, stomach, liver and kidney meridians. It has the efficacy of dispersing cold, regulating qi and relieving pain, and is mainly used for treating cold hernia and abdominal pain (acute abdominal pain caused by internal cold and external wind-cold), cold pain in the lower back and knees, cold stomach and vomiting, pain in the epigastrium (stomach), and cold-dampness feet (numbness, soreness and swelling in legs and feet caused by cold and dampness). People who are allergic to star anise, or who are suffering from yin deficiency (deficiency of yin and essence in the body, resulting in hyperactive fire), or who have heat in the lungs and stomach, are prohibited from taking star anise. Star anise can be decocted, finely ground and taken internally, made into pills, or used externally. During the medication period, avoid eating cold, greasy food, which may reduce the efficacy of the treatment, if you need to eat, please consult your doctor. The adverse effects of anise are not clear, it is recommended to take under the guidance of a professional Chinese medicine doctor, so as to avoid adverse effects of private medication.