Snake Retrograde is a traditional Chinese medicine with the written name kangban gui. It is effective in clearing heat and removing toxins (removing heat and toxins from the body), inducing diuresis and eliminating swelling (promoting urination and eliminating edema), and can be used to treat colds and fever, sore throat, whooping cough, carbuncles, dysuria, diarrhea, hemorrhoids, jaundice, and leucorrhoea. Snake Retrograde is sour, bitter and flat in nature, and belongs to the lung and small intestine meridian. It has the efficacy of clearing heat and removing toxins, inducing diuresis and eliminating edema, and can be used for treating cold and fever, sore throat, mumps, scrofula (mainly refers to cervical lymph node tuberculosis), whooping cough, carbuncle, dysuria, diarrhea, piles, jaundice, subluxation of the belt, herpes zoster, herpes aspergillos, carbuncle boils, and snake bites. The adverse reactions and contraindications of this product are not clear. If there is any discomfort, it is recommended to consult a doctor in time. Chinese medicine is recommended to be used under the guidance of a doctor and not to be taken by oneself.