Sequoia usually refers to the southern red bean tree, its branches and leaves can be used as medicine, but the bark of the red bean tree usually has no medicinal value, and its boiled water to drink has no medicinal effect. The leaves and branches of the cultivated southern red bean tree (Picea abies) of the family Picea abies can be used as medicine, and its flavor is sweet and slightly bitter, and its nature is flat; it belongs to the heart and kidney meridian. The southern red bean tree has the effect of detoxifying and dispersing the accumulation of toxins, activating the channels and relieving pain, inducing diuresis and eliminating swelling, and transforming food into food and driving away worms. The main treatment for kidney disease, food accumulation (food indigestion and accumulation in the stomach), sore throat and other diseases. Red bean cedar bark boiled in water to drink does not have medicinal value, and is not recommended to use the red bean cedar branches and leaves or bark boiled in water to drink on their own. The use of drugs must be under the guidance of a doctor, and if discomfort occurs after taking the drug, consult a doctor in a timely manner.