Wild buckwheat root is commonly used to treat arthritis and traumatic injury, which has the effects of reducing swelling, removing blood stasis, relieving pain and dredging menstruation. It is better to apply it in the same year after collection. This product has strong inhibitory effect on Staphylococcus aureus and is a good anti-inflammatory and antibacterial medicine for surgery. Clinical treatment of throat disease, chest pain and acute abscess has obvious effect. Ceng Zhi suffered from acute tonsillitis with severe pain, which was taken frequently after decoction of single hide, and immediately relieved. When swallowing consciously, tonsils felt numb. Later, several cases of chronic pharyngitis in Ceng Zhi were treated with this product together with Achyranthes bidentata or Solanum nigrum, and the pain was reduced after taking more. Considering that this product seems to have the effect of anesthesia on mucosa. Acute abscess and erysipelas, etc., are usually dissipated within 3 days after being decocted with 30g of this product and 30g of Lonicera japonica Thunb. Patients who have tried to treat intercostal neuralgia and chondrochondritis, the pain is reduced after being decocted with 30g of this product. What is of great interest is chest arthralgia due to a coronary heart disease in Ceng Zhi. This product is combined with Salvia Miltiorrhiza, 30g each, which is relieved after being taken. This is the proof that it has the function of promoting blood circulation and dredging veins.