【Nature and flavor】Pungent, bitter, cold.
 [return through meridians] Returns to the lung and stomach meridians.
 【Function】Disperse wind-heat, clear the lungs and relieve sore throat, detoxify and cure rashes, reduce swelling and treat sores.
 [Indications] Wind-heat cold, initial stage of febrile disease, measles that has not yet broken out, carbuncles, swellings and sores.
 【Usage and Dosage】Decoction, 6-12g.
 [Precautions for use] Burdock seeds are cold in nature, can lubricate the intestines and promote bowel movements, and should be used with caution by those suffering from qi deficiency and loose stools.
 【Modern Research】It can be used to prevent and treat diabetic nephropathy.
 【Medical records】
 "Bie Lu": "It improves eyesight and replenishes the middle, and eliminates wind damage."
 "Medicine Properties": "It can eliminate all kinds of wind, benefit the waist and feet, and disperse all kinds of knots, tendons, bones, irritability, heat and toxins."
 "Food Therapy Materia Medica": "Fry it and grind it into powder. Boil it like tea for three spoonfuls. It can help urination."
 "Supplement to Materia Medica": "It is used to treat wind-induced swelling and various paralysis."
 "Medical Origin": "It can relieve pharyngeal septum. "Secrets of Main Treatments": It can moisten the lungs and disperse qi."
 Li Gao: "It can treat rheumatism, rashes, wind-heat in the throat, dissipate the poison of various swellings and ulcers, and relieve stagnant Qi in the waist and knees."
 "Compendium of Materia Medica": "It can eliminate rashes and rashes."
 【Predecessors release medicine】
 "Ben Cao Jing Shu" states: "Erysiphala is an essential medicine for dispersing wind, removing heat and detoxifying. Spicy flavor can disperse stagnation, bitter flavor can relieve heat, and when heat stagnation is dispersed, the internal organs are clear and bright, so it can improve eyesight and nourish the middle. Where wind hurts, the defensive qi will be blocked, and blockage will cause fever. Spicy and cool flavors can dissipate the qi, and the surface qi will be harmonious, and the wind will have nowhere to stay. Zang-qi is responsible for wind-toxic swelling and atrophy; Yuan-su is responsible for moistening the lungs, dispersing stagnation, relieving sore throat, removing skin wind, and unblocking the twelve meridians. This is the meaning. Therefore, it is used to treat eczema and smallpox, and it is particularly effective.
 "Pharmaceutical Chemistry": Burdock seeds can rise and fall, and effectively resolve heat and toxicity. The bitter taste can clear away heat, and the pungent taste can dispel wind. It is mainly used to treat upper wind phlegm, facial edema, sore throat, various toxic heat congestion, saber scrofula, phlegm nodules in the neck, blood heat pox, seasonal rashes, skin urticaria, and all lung meridian fire depression and lung meridian wind heat.
 "Ben Cao Qiu Zhen" says: "Nowadays, people only talk about burdock seeds for detoxification. Whenever they encounter sores, carbuncles, rashes, and other symptoms, they will use this to treat them, but they still don't understand its meaning. The toxic qi of ordinary people is mostly caused by external wind and cold, and the nutrient qi does not follow, and it goes against the flesh, so carbuncle poison is generated. Burdock is pungent and bitter, which can not only descend the qi downward, but also disperse the wind and remove heat. Therefore, when you are affected by wind evil and heat toxins, you will see edema of the face, cough and phlegm, swelling and pain in the throat, sores, rashes, and all kinds of stinky toxins, sha closure, purple and black pox, constipation, etc., all of which can be used to clear the exterior and clear the interior. However, it is cold and slippery, and taking too much will damage the middle qi, and make the exterior more weak. As for spleen deficiency and diarrhea, it is especially taboo.
 "Ben Cao Zheng Yi" says: The use of burdock can disperse wind-heat, cause pox, and is good at relieving constipation. If it is not excessive heat or the spleen is not strong, it will cause diarrhea. It is pungent, purgative, bitter and descending, and has more downward power. Jie Gu said it is warm, and Jing Yue said it is ascending in descending , but they are not true. "Bie Lu" says it can improve eyesight, so the wind-heat is relieved and the eyes are clear. It can also relieve the heat and make the body healthy. It can eliminate wind damage, which is also the wind-heat. Its rhizome is called bitter and cold by Binhu in "Gang Mu", and the main treatment of "Bie Lu" is to eliminate heat and promote bowel movement. Its power is similar to that of Zi, but its cold and purgative nature is stronger. It is used to clear heat and guide. It should not be used without real fire. For those who are suitable for penetrating lung evil but not for suppressing and descending, such as measles at the beginning, it has not been vented yet. If it is used to clear and descend early, there is always a risk of suppressing the qi mechanism and causing internal collapse. Only burdock can clear away the pathogenic factors and can also help relieve constipation in patients with febrile and hot diseases and reduce the severity of the disease. Therefore, burdock is the most specific medicine for measles .