Cypress leaves may refer to the leaves of cypress in traditional Chinese medicine, the role of cypress leaves boiled in water to wash hair is not yet clear. Side cypress leaves have the effect of cooling blood and stopping bleeding (making blood cool and moist, preventing bleeding), resolving phlegm and stopping cough, and producing hair and hair. It is recommended to follow the doctor’s advice. Lateral Cypress Leaf, bitter, astringent, cold in nature; attributed to the lung, liver, spleen meridian. Clinically, it is mainly used in the treatment of hematemesis, epistaxis, hemoptysis, hematemesis, bleeding in stool, hemorrhagic leakage (excessive menstrual flow or more than a few drops of blood), coughing due to lung heat, hair loss due to blood heat and early whitening of hair. Prolonged use or excessive use may lead to gastric discomfort and loss of appetite. If the patient has any discomfort, please go to the regular medical institutions; if you need to use side effects, must be used under the guidance of a professional doctor.