Mugwort can play a certain role in dispelling dampness. The leaves of mugwort can be used as medicine, known as mugwort, mugwort is pungent, bitter, warm, with a small poison, attributed to the liver, spleen, kidney meridian, with warm menstruation to stop bleeding (warming the human body meridians, stopping bleeding in the body), dispersal of cold to relieve pain (through the elimination of the body’s cold to ease the pain), and external use of dampness and itching and other effects. Mugwort decoction fumigation can dispel dampness and kill insects and itching, can relieve dampness due to skin itching and other symptoms. In addition, traditional Chinese medicine will also be processed into moxa, moxa sticks and other products, in the ignition of moxa through the warmth of moxibustion to achieve the purpose of eliminating dampness. However, it should be noted that mugwort is warm and dry, Yin deficiency and internal heat should be used with caution, in the use of mugwort to dispel dampness before the need to consult a doctor to identify the type of use, not blindly use the drug, so as not to cause adverse consequences.