Auricularia auricula therapy: Take auricularia auricula, auricularia auricula and hawthorn each10g, decoct in water, drink soup and eat auricularia auricula twice a day1-2 times, which can cure oral ulcer. Cocoa therapy: cocoa powder and honey are mixed into paste, which is frequently swallowed. It can cure oral inflammation and ulcer several times a day. Chinese cabbage root therapy: Take 60 grams of Chinese cabbage root, garlic sprout 15 grams, jujube 10, decoct in water twice a day, which can cure oral ulcer. Rapeseed therapy: Take 30 grams of white radish seeds, 30 grams of mustard seeds and 5 grams of scallion/kloc-0, mash them together and stick them on the foot, once a day/kloc-0, which can cure oral ulcer. Apple therapy: Take 1 apple (pear can also be used) and put it into a container, add cold water (the apple or pear that has not been boiled) and heat it until it boils. When it is slightly cool, put it in your mouth with wine for a while before eating, and it can be cured for several days. You can also use Sanlian tablet, which has obvious effect on the healing and pain relief of recurrent oral ulcer and Behcet's disease, and can prevent recurrence in the future. At present, foreign first-line drugs for oral ulcer treatment. Eat more light food instead of spicy food.