Vitamin B2 can assist in the treatment of mouth ulcers, but not all mouth ulcers can be treated with vitamin B2. Clinically, mouth ulcers are related to many factors, if it is due to vitamin B2 deficiency caused by mouth ulcers, you can use vitamin B2 treatment under the guidance of the doctor, can replenish the body’s lack of vitamins, relieve the symptoms of mouth ulcers. Some patients with mouth ulcers may be caused by other factors, then simply rely on vitamin B2 treatment may not achieve a better result, the need to choose other drugs, such as the use of cidi iodine tablets under the guidance of the physician, watermelon cream and other drugs, can promote oral mucosal healing, relieve the symptoms of mouth ulcers. Usually need to pay attention to oral hygiene, but also need to maintain a light diet.