Chrysanthemum is usually taken by decoction, and the Pharmacopoeia stipulates that the dosage is 5~10 grams at a time, and the specific dosage should be guided by a professional doctor. Chrysanthemum belongs to the group of Chinese herbs that disperses wind-heat, is slightly cold in nature, and has the effects of dispersing wind-heat, calming the liver and clearing the eyes, clearing heat and removing toxins (clearing heat and toxins from the body), which can be used to treat wind-heat and colds, headache and dizziness, redness and pain in the eyes, dimming of the eyes and canker sores and poisons, and other conditions. Chrysanthemum is usually combined with other Chinese medicines in decoctions, such as mulberry leaves for treating wind-heat and colds, and honeysuckle for treating canker sores and poisons. The specific usage and dosage of the drug should follow the doctor’s instructions. Patients with the above symptoms need to go to the hospital in a timely manner for diagnosis and treatment, under the guidance of the doctor reasonable use of medication, do not blindly self-medication, so as not to delay the condition or produce adverse reactions.