The efficacy of Cang Er Zi is dispersing wind-cold, clearing the nose, dispelling wind-dampness, relieving pain, killing insects and relieving itching; it can be used to treat wind-cold and cold, rhinitis, rubella and itching rash. Cang Er Zi is pungent and warm, can disperse wind-cold, clinically used to treat fever caused by wind-cold, head and body pain. Cang Er Zi is pungent and good at clearing the nose, clinically this medicine is often used to treat acute and chronic rhinitis, allergic rhinitis, sinusitis, etc. caused by nasal congestion, headache, thick nasal discharge and smell the odor and other symptoms. Cang Er Zi is warm and disperses cold, and has the efficacy of dispelling wind and dampness (dispelling wind and dampness that stays in the meridians, muscles, joints and other parts of the body), clinically and with other drugs can be used for the treatment of wind and dampness caused by the evil of the blood does not run well, joints and other diseases. Auricularia also has the role of insecticide and itching, can be added to the water decoction, external treatment of various rashes and itching and scabies and other skin diseases. The use of medication should be under the guidance of a doctor, do not self-medication.