Chinese medicine believes that “fire” is generally related to internal heat. Chrysanthemum has the efficacy of dispersing wind and clearing heat, calming the liver and improving eyesight, and clearing heat and detoxification (removing heat and toxicity from the body), so chrysanthemum tea has a certain effect on “on fire”. However, chrysanthemum tea has limited efficacy and cannot be used as a substitute for medication in the treatment of diseases. Chrysanthemum is the dried capitulum of the chrysanthemum plant, family Asteraceae. The medicine is sweet, bitter, slightly cold, attributed to the lungs, liver meridian, with the wind and clear heat, calm the liver and clear the eyes, clearing heat and detoxification effect. It can be used clinically for the treatment of wind-heat and cold, headache and dizziness, redness and swelling of the eyes, dimming of the eyes, sores, carbuncles and poisons. The drug is cold in nature and is not recommended to be used by patients with deficiency of spleen and stomach (weak and cold spleen and stomach). For patients who are “on fire”, it is recommended that they go to a regular hospital for consultation and treatment under the guidance of a specialized physician.