Flat warts are caused by human papillomavirus infection, and they exhibit strong contagiousness and a tendency to recur. If they are located near the eyes and are relatively few in number, direct treatment with a laser can be employed. After the laser treatment, antiviral medication should be applied locally. Additionally, it is advisable to take some medications to enhance immune function, engage in regular exercise, and avoid spicy and irritating foods. If there are many warts and long-term treatment has been ineffective, immunotherapy for warts can be considered. This involves removing the warts and embedding the antigens and antibodies subcutaneously to stimulate the body's own antibody production against the virus. If this still does not yield satisfactory results, long-term treatment with oral and topical medications can be used, though this method requires persistence over an extended period.