Mouth ulcers should eat a light diet and alcohol is not recommended. Mouth ulcers, also known as recurrent aphthous ulcers and recurrent aphthous ulcers, are the most common disease of the oral mucous membranes and are localized to a burning sensation. The cause of this disease is unknown and is usually the result of a combination of factors, such as immune factors and environmental factors. Alcohol tends to irritate mouth ulcers and is not conducive to healing. In addition to alcohol, foods such as cigarettes, spicy and fishy foods are not recommended to avoid irritation. Occurrence of mouth ulcers should drink more water, pay attention to rest, eat a light diet, eat more vegetables and fruits. If the mouth ulcers are serious patients can take cediriodine tablets, or the use of ice boron powder, watermelon cream and other dispersions local blowing on the affected area of the way, the specific use of medication is recommended under the guidance of a doctor.