The efficacy of eggplant is to cool the blood and detoxify the toxin (refers to the treatment of blood-heat and toxin embodied in the blood), and works to treat carbuncle sores and poisons, mouth sores, toothache, and blood in the stool, etc., and needs to be used under the doctor’s finger to identify the symptoms. Eggplant tip is a kind of Chinese herbal medicine, is the persistent calyx of the eggplant of the Solanaceae family, with the efficacy of cooling the blood and detoxifying the toxin, suitable for patients with carbuncle sores and swollen toxins caused by heat and toxin embodiment. It can also be used to treat sores on the mouth and tongue, red and painful gums, swollen cheeks, fresh red blood in the stool, and red tongue with yellow fur. Eggplant is not suitable for patients with cold in the body. Eggplant can be decocted and taken internally, or powdered and used externally. During the use of eggplant extract, spicy and greasy food should not be consumed. The use of eggplant as medicine requires the guidance of a professional Chinese medicine practitioner and should not be used blindly.