Generally follow the doctor’s instructions to take Angelica dahurica on will not be harmful to people, but Yin deficiency hyperactivity of patients taking Angelica dahurica may be harmful, easy to aggravate the condition. Angelica dahurica has the effect of relieving pain, discharging pus, dispelling wind, clearing orifices, removing dampness, and reducing swelling. And Angelica dahurica is mainly used for the treatment of toothache, nasal abyss (mainly manifested as nasal mucus obscene, the amount of wipe unclean), nasal congestion, red leucorrhoea (leucorrhoea abnormalities, mixed with blood or blood clots) and so on. It can also be used for the treatment of colds and headaches, carbuncle (is a kind of poisonous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease) sores and ulcers and other conditions. Usually patients follow the doctor’s instructions to treat with Angelica dahurica, will not be harmful to the body, but Yin deficiency hyperactivity of Yang, headache, blood deficiency with heat patients taking Angelica dahurica may aggravate the condition. In addition, Yin deficiency hyperactivity headache, blood deficiency with heat patients, to avoid taking Angelica dahurica. It is recommended that patients can take Angelica dahurica under the guidance of a doctor, not unauthorized use of medication.