Shepherd’s purse has the effect of brightening the eyes, stopping bleeding, and promoting water retention and swelling (facilitating urination and eliminating edema). But too much consumption, there may be diarrhea side effects. Shepherd’s purse is the whole grass of the cruciferous plant shepherd’s purse pepper, sweet, light, cool in nature, into the liver, stomach, bladder meridian. It can be used to treat vomiting blood, hemoptysis, blood in stool, blood in urine, metrorrhagia (excessive menstrual flow or dribbling), excessive menstruation, cold and fever, measles, intestinal inflammation, dysentery, nephritis and edema, gonorrhea, celiac disease, hypertension, redness of the eyes, eye pain, cataracts of the eyes, and so on. However, for people with a cold constitution, they can not eat too much, because capers are cold, which will aggravate the coldness and diarrhea. Patients with related discomfort, it is recommended to consult a doctor in a timely manner, should not self-medication, but also to follow the doctor’s advice to eat in moderation, so as not to cause discomfort.