People with mouth sores can take B vitamins, such as vitamin B2, vitamin B6 and vitamin B12, you can also supplement vitamin C, you can also use therapeutic food to supplement vitamins and trace elements, it is recommended to eat more fresh vegetables and fruits, while ensuring balanced nutrition, coarse grains, cereals, lean meat, nuts, soy products, dairy products should be moderate intake, to ensure balanced nutrition. Recurrent mouth sores may also be caused by a preference for spicy, stimulating food, this group of people to light, warm and soft food. The presence of sharp teeth or caries, root and crown remnants in the mouth can also cause traumatic ulcers, leading to recurrent mouth sores, and these people should be treated for the corresponding dental disease. Mouth sores can also be caused by irregular work and rest habits, in which case it is important to ensure that you go to bed early and get up early, to have a regular routine, and to avoid staying up late and shifting the time between day and night.