The Perilla fruit is known for its warm and spicy properties. It is believed to stimulate the large intestine and lung channels, and can help stop coughing and calm wheezing. Additionally, it is said to redirect qi downward and dissolve phlegm. It also is believed to moisten the intestines and unblock stool. However, it should not be used in cases of severe diarrhea resulting from qi deficiency. The recommended dosage is 1-3g.