It is best to take a medicated bath 1-2 times a day for 15-30 minutes each time. A medicated bath is one of the external treatments in Chinese medicine, in which the body is bathed with a medicinal solution or water containing a medicinal solution, either locally or throughout the body, for therapeutic or wellness purposes. It mainly includes: full body bath, sitz bath and foot bath. Drug bath can play the role of dredging meridians, activating blood circulation, warming the meridians and dispersing cold, relieving swelling and pain, clearing heat and detoxifying, dispelling wind and relieving itching, harmonizing the internal organs and other therapeutic and health effects. Drug bath as long as the control of the water temperature, or a very safe method of treatment and health, the frequency of bathing should start with once a day, each time about 15 minutes, until the program is skilled, the frequency and length of the drug bath can be gradually increased, but in principle, the frequency is not easy to exceed 2 times / day, the time should not exceed 30 minutes. The benefits of drug baths, but also need to know some precautions: patients with chronic diseases such as hypertension, cardiovascular and cerebrovascular disease caution drug baths; should not be fasting drug baths; if the skin burns or allergies after the drug bath, you need to seek medical attention.