Health-keeping refers to a medical activity that supports life, strengthens physique and prevents diseases through various methods, so as to achieve longevity. The so-called life is life, survival and growth; The so-called maintenance means maintenance, recuperation and nourishing. In a word, keeping in good health is to maintain life. According to the theory of traditional Chinese medicine, the traditional health care methods in China are used, such as regulating the mind, dredging, regulating the four seasons, food tonic, medicine tonic and so on. Rhubarb-clearing away heat and toxic materials, stopping bleeding and removing blood stasis, relaxing bowels and killing insects. Can be used for treating pulmonary abscess, pulmonary tuberculosis hemoptysis, epistaxis, Japanese encephalitis, acute and chronic hepatitis, and constipation; Externally used for treating traumatic injury, burn, carbuncle and furuncle, parotitis, scabies, eczema and dermatitis. Rhubarb: Bitter, pungent and cool. It has laxative effect, please take it strictly according to the doctor's advice. Usage and dosage: root leaves 3 ~ 5 yuan (fresh 0.5 ~ 1 yuan); Appropriate amount for external use, ground and applied to the affected area.