A scraping plate is provided. The scraping plate includes a main body, a storage chamber for storing a liquid medicine and an electric heater for heating the liquid medicine. One end of the main body is provided with a scraping blade, and the other end opposite to the scraping blade is provided with a grip portion. Both the storage chamber and the electric heater are provided inside the main body. A surface of the scraping blade is provided with at least one liquid medicine outlet, wherein each liquid medicine outlet is communicated with the storage chamber.
