First, the most common disease causing oral ulcers is recurrent oral ulcers, followed by some local irritants such as root stumps, crown stumps, chemicals, temperature stimulation caused by traumatic ulcers, and some systemic diseases, syndromes in the oral cavity. Such as anemia, vitamin deficiency, leukodystrophy, radiation stomatitis, Crohn’s disease. Second, what should patients with frequent mouth ulcers pay attention to? The cause of recurrent mouth ulcers is still undetermined, so it cannot be cured yet. However, if patients pay attention to nutrition and health care, balanced diet, actively participate in physical exercise, remove the causative factors, remove possible pathogenic factors (such as mental tension, environmental changes, lack of sleep, etc.), treat some systemic diseases related to mouth ulcers (such as gastric ulcer, duodenal ulcer, liver and gallbladder diseases, etc.), reduce local stimulation and maintain oral hygiene, they can prolong the interval between ulcer recurrence and shorten the healing time. How to cure mouth ulcers? How to cure the mouth ulcer? Mouth ulcer is a common oral mucous membrane disease, also known as mouth sores, pain is very obvious when the attack, can be self-healing without treatment. There are also recurrent attacks, called recurrent mouth ulcers, which have a great impact on the work and life of patients. The exact cause of mouth ulcers is still inconclusive, but its occurrence is related to many factors, such as reduced cellular immune function; digestive system diseases such as bloating, diarrhea or constipation; endocrine changes; mental factors such as mental stress and poor sleep conditions; and other factors such as lack of trace elements zinc, iron, folic acid, vitamin Bl2, and genetics. To eradicate mouth ulcers, the fundamental way to start is to enhance physical fitness and improve immunity. People who often suffer from mouth ulcers should pay attention to do in life: psychological adjustment to achieve relief and optimism; maintain oral and skin hygiene, adhere to frequent brushing, rinsing and bathing; pay attention to smooth bowel movements and adequate sleep; pay attention to nutritional mix, eat more fresh fruits and vegetables to clean the stomach, avoid chewing gum, chocolate, tobacco, alcohol, coffee, hot food and spicy barbecue, fried products and other easy to trigger or aggravate mouth ulcers. When mouth ulcers occur, ulcers can be used in any of the following ways: 1, the Italian can paste. 2.Gentamicin injection is applied to the ulcer surface in the mouth, and then reapplied after a few minutes, 4 times a day, 2 or 3 days to heal. 3.Vitamin C tablet crushed and sprinkled on the ulcer or put the whole tablet directly on the affected area, 2 times a day. Generally 3-4 times can be healed; lighter cases can be healed 1-2 times, but the pain is significant when first used. 4.Yunnan Baiyao can be applied to the ulcer twice a day, usually 2-3 days to heal. 5, can also be used 1% silver nitrate solution or 5% trichloroacetic acid tincture, prednisone paste, etc. coated on the surface of the ulcer. Systemic treatment can be considered in severe cases: 1. When the ulcer is attacked, vitamin Bl, B2, B6, vitamin C and zinc can be supplemented to improve the body’s ability to heal itself. 2.When the ulcer has secondary infection, antibiotics can be taken appropriately. 3.When the ulcer keeps recurring, consider using drugs that adjust the immune function, such as adrenocorticotropic hormone, generally in small and medium doses and short courses, and also take drugs that adjust the immune function such as ginseng, astragalus, cordyceps, six-flavored dihuang pill, tonic Chinese medicine, etc. to reduce recurrence. What should be done for mouth ulcers? It should be reminded that the above treatment should be carried out in a hospital for regular treatment, especially for persistent recurrent mouth ulcers and to exclude the possibility of malignant diseases.