Cassia seed: Cassia seed is a good Chinese herbal medicine. It is slightly cold, and has the effects of relaxing bowels, reducing blood fat and improving eyesight. It can treat constipation, hypertension and hyperlipidemia, and has a laxative effect.

Glycyrrhiza uralensis Fisch: Glycyrrhiza uralensis Fisch is also known as Guolao, Sweet Grass, Ural Glycyrrhiza uralensis Fisch and Sweet Root. Leguminosae and Glycyrrhiza are perennial herbs with strong roots and rhizomes, which are a kind of tonic Chinese herbal medicine. A kind of medicine which is very good for human body, the medicinal parts are roots and rhizomes, and the medicinal root is cylindrical, with a length of 25-1 cm and a diameter of .6-3.5 cm.

Platycodon grandiflorum: Platycodon grandiflorum is a perennial herb belonging to Campanulaceae. Platycodon grandiflorum has strong environmental adaptability and can be planted in many areas of China. It has milk in the plant and is smooth and hairless. The roots are thick and fleshy, conical or forked, and the skin color is yellowish brown. The stem is upright and branched. Most of the leaves are alternate, and a few are opposite. The shape of the leaves is oblong and the edges of the leaves are serrated. The flowers are large in shape, solitary at the top of the stem root or a few are sparse flowers in total order. Platycodon grandiflorum, also known as monk's crown hat, bell flower, and bag flower, has a plant height of 3-12 cm, a straight flower length of 3-5 cm, and the flowers are purple-blue, turquoise-blue, pure white and so on, with beautiful patterns. The flowering period is between July and September every year, and the seeds mature around October. It is often used as an ornamental flower or directly used as medicine. It can relieve cough, eliminate phlegm, treat voice loss, treat lung abscess and lower cholesterol.