Fetal chrysanthemum should refer to chrysanthemum flowers, the general dosage is 5~10 grams, the exact number of chrysanthemums should be decided according to the size of the chrysanthemum flowers. The active ingredients of the tea substitute are limited, and the treatment of the disease should be based on the use of drugs under the guidance of a physician. Chrysanthemum is slightly cold in nature, sweet and bitter in taste, and belongs to the lung and liver meridians. It has the functions of dispersing wind-heat, clearing the liver and brightening the eyes (clearing the liver fire to promote the restoration of vision), calming the liver yang, and clearing heat and toxins (clearing the heat and toxins in the body), and it is suitable for the beginning of wind-heat and cold, or wind-heat and cold, which is characterized by fever, headache, etc. It is also used for the symptoms of liver yang upticked by vertigo, redness, swelling and pain in the eyes, and also used for the initial stage of sores, swelling and poisoning. Caution should be exercised for those with coldness in the spleen and stomach (spleen and stomach weak and cold). If you want to use Chrysanthemum, it is recommended to use it under the guidance of a doctor.