Head therapy is an external treatment method, which is actually herbal fumigation. Combining various functions such as medicine therapy, heat therapy, vapor therapy and drug penetration, it can treat eczema, psoriasis and other stubborn skin diseases. For long time in a humid environment, or cold-induced frozen shoulder, rheumatoid arthritis, can relieve pain and suffering. For white-collar class who are sedentary in the office, if treated regularly, it can relieve muscle fatigue and nervous tension. The sweat method is to make the sweat holes open by promoting the lung qi and harmonizing the Ying and Wei, so that the external cold evil in the muscle surface can be solved by sweating out, which is more direct than taking medicine. However, the sweating method requires that the whole body be moist, and heavy sweating is prohibited.