Chen Pi is a traditional Chinese medicine. Old Chen Pi has the following effects: i. Treatment of low blood pressure: Chen Pi can make blood vessels mildly constrict and raise blood pressure. Second, stop coughing and calm asthma: Chen Pi has the effect of calming asthma and can relieve sore throat. Third, treatment of urinary urgency: because the old Chen Pi in can promote the normal operation of the genitourinary system. Fourth, strengthen the spleen and appetite: If you usually have a poor appetite, you can drink water with old Chen Pi, which can play a certain role in strengthening the spleen and appetite, patients can drink water with old Chen Pi under the guidance of a doctor.