Chrysanthemum cannot be applied externally to treat high blood pressure. Chrysanthemum is a kind of chrysanthemum, which has the effects of evacuating wind-heat, calming liver-yang, clearing heat and removing toxins (removing heat and toxins from the body), in addition to cleansing the liver and improving eyesight (clearing liver fire to promote the recovery of eyesight). It is mainly used for treating wind-heat colds, the first signs of warm diseases, redness and dizziness of the eyes, vertigo of liver-yang, liver-wind syndrome, sores, carbuncles and swollen poisons. Hypertension falls within the scope of headache and dizziness in Chinese medicine. Oral consumption of this kind of chrysanthemum may have therapeutic effect on liver-yang vertigo, but using Xueju externally to treat headache and vertigo is not effective. Headache and vertigo are divided into the types of liver-yang hyperactivity (liver-yang is on the high side, causing dizziness, dizziness, headache and other symptoms), wind-phlegm upheaval (wind and phlegm evils invade the head), qi stagnation and blood stasis (blood stasis due to lack of qi circulation), and liver and kidney deficiencies (liver and kidneys are functionally weak), in which patients with liver-yang hyperactivity type may have effects from taking Snowdrop Chrysanthemum orally. Patients with headache and vertigo should not eat food that is too oily and salty, do not have the bad habit of smoking and drinking, do not be mentally stressed, and keep away from bad triggers. Headache, vertigo patients should not blindly use Xueju external treatment, to avoid delaying the condition, headache, vertigo patients should actively seek medical attention, do not self-medication.