For recurrent aphthous stomatitis, oral medications such as colchicine, aminophene, thalidomide, etc. are usually given for four weeks as a course of treatment. In severe pain, the non-steroidal anti-inflammatory drugs anti-inflammatory pain and fenbendazole can be taken. Severe cases can be treated systematically with glucocorticoids, such as prednisone. At the same time, rinse the mouth with 0.5% chlorhexidine tablets or compound chlorhexidine solution. Oral vitamin C and vitamin B complex can promote the healing of the mucous membrane, and Chinese medicine can be chosen from Kunming Mountain Begonia, as well as clearing heat and fire, cooling the blood and opening the bowels of the stomach, and Jade Lady Decoction.