Shepherd’s purse has the effect of clearing heat and removing dampness (removing heat and dampness from the body), calming the liver and improving eyesight, cooling the blood and stopping bleeding (cooling and moisturizing the blood to prevent bleeding). However, the therapeutic effect of single medicine is not good, it is recommended by professional physicians to identify the evidence after the preparation of a prescription group of medicines, and other medicines with a reasonable combination to improve the therapeutic effect. Shepherd’s purse is sweet, light and cool in nature, and belongs to liver, spleen and bladder meridians. It has the efficacy of cooling the liver, stopping bleeding, calming the liver and clearing heat and dampness. It is used in the treatment of hematemesis, epistaxis, hemoptysis, uraemia, metrorrhagia (excessive menstrual flow or dribbling), pain in the redness of the eyes, and can also be used for hemorrhage under the eyes and red-white dysentery. Shepherd’s purse is calm in nature and its contraindications are not clear. Discomfort should seek medical treatment in time, under the guidance of the physician’s diagnosis and selection of medication, not self-medication, so as not to delay the condition.