Lanzhengxin is a Chinese herbal medicine that disperses cold and relieves the symptoms of cold, dispels wind and dampness, relieves pain and eliminates stagnation, and its side effects are unclear. It is warm in nature, pungent and slightly bitter in taste, and has the efficacy of dispersing cold and relieving epidemics, dispelling wind and dampness, activating collaterals and relieving pain, and eliminating accumulation. It can be used for treating colds and flu, rheumatism and paralysis, paralysis, stomach ache, toothache, pediatric chancre (a kind of chronic disease of children, which manifests as emaciation, dietary anomalies, abdominal distension, and sparse and withered hair), osteomyelitis, and bruises, etc. It can be decocted and taken internally. This product can be decocted and taken internally, or powdered and steamed for eggs, and can also be used externally in appropriate amounts. The adverse reactions of this product are not clear, note that the use of this product is prohibited for those who are allergic to this product, allergy should be taken with caution. If you need to use this product, should be under the guidance of a physician, do not blindly use their own medicine, so as not to cause adverse reactions.