Burdock root is effective in dispelling wind-heat and subduing swellings and toxins. It is contraindicated in cases of wind-cold syndrome and cold deficiency. Burdock root is the root of burdock, family Asteraceae, bitter, slightly sweet, non-toxic, cool, into the lung, heart meridian. It has the efficacy of dispelling wind-heat and eliminating swelling and toxicity, and is clinically used for the treatment of wind-poisoned face swelling, sore throat, wind-heat toothache, dizziness, cough, carbuncle and gangrene (a kind of venomous sores, which occurs on the surface of the body, limbs, and the internal organs of the suppurative disease), and scabies, etc. It is bitter and cold. Burdock root is bitter cold products, wind-cold surface evidence, Yin deficiency and internal cold is prohibited. Old and weak, pregnant and lactating women should not be used. According to “Gleanings from the Materia Medica”, burdock root must be steamed and dried, otherwise it is easy to cause vomiting. If burdock root is used, it should be consulted with a physician and used by a traditional Chinese medicine practitioner to avoid adverse physical consequences.