The patient has oral lichen planus. If you want to take medicine, you may use some immunosuppressants, such as chloroquine, tripterygium wilfordii, tripterygium wilfordii and so on. Sometimes we take prednisone orally. Of course, these drugs have side effects, so they should be used under the guidance of a doctor, strictly control the dosage and time, and review them regularly to prevent serious side effects.