Among the many diseases of the oral cavity, mouth ulcers are the most frequent, and many people have recurrent mouth ulcers. So, what is the most important way to prevent mouth ulcers? Here, let’s learn together from the following methods. 1, the prevention of mouth ulcers need to avoid and remove all local irritants. 2, mouth ulcer patients emphasize the cessation of smoking, alcohol and avoid using spicy stimulating diet. This is also in the prevention of mouth ulcers need to pay attention to. 3, the prevention of oral ulcers also need to do regular life and living, mood, strengthen physical exercise, improve the body’s resistance to disease. 4, the reasonable allocation of diet, mouth ulcer patients should be light and easy to digest diet, and rich in high heat, high protein, eat more fresh vegetables and fruits.