Generally hives can be scrubbed with mugwort leaves, except for those who are allergic to mugwort leaves. Mugwort leaves are the dried leaves of the plant Mugwort, family Asteraceae, picked in summer when the flowers are not in bloom, remove impurities, sun-dried, raw or fried with charcoal. The medicinal properties are pungent, bitter and warm; it is slightly poisonous and belongs to the liver, spleen and kidney meridians. It has the functions of warming the menstruation to stop bleeding (warming the human body’s meridians to stop bleeding in the body), dispersing cold to relieve pain (relieving pain by dispelling cold in the body), regulating menstruation, and stabilizing the fetus, and dispelling dampness and relieving itching when used externally. Because the product is pungent, bitter and dry, local decoction of external wash has the function of dispelling dampness and relieving itching, can be used to treat eczema, pruritus, scabies and other itching skin, can also improve the itching caused by urticaria. Appropriate amount for external use, generally for fumigation, can also be used for moxibustion. The volatile oil of mugwort leaves has a mild irritating effect on the skin, which can cause fever, flushing and other adverse reactions, and should not be used by those who are allergic to mugwort leaves. Suffering from urticaria, should promptly consult a doctor, under the guidance of a professional physician standardized treatment, so as not to delay the condition.