In daily life, many people will encounter rotten corners of the mouth and blisters on their mouths. This is herpes on the lips. Cold sores are caused by herpes simplex virus infection, which is called "getting angry" in Chinese medicine. Usually occurs in the mouth and mouth. It is usually caused by cold, fever, fatigue, lack of sleep, depression, tension and anxiety. , leading to decreased immunity, latent herpes virus in the body multiplied, foaming at the mouth. At first, there was a burning sensation, and then there were blisters, erosion and scabs. The course of the disease is about a week, and it can recur.

Cold sores often appear needle-sized blisters at the mucosa of the mouth and lips, often in one group or two or three groups, with a slight burning sensation, which can heal itself or recur in a week or so. If herpes is caused by improper regulation of immune mechanism or secondary infection after rupture, the course of disease will be prolonged.

To prevent oral herpes, we must first ensure sleep time and take a nap at noon. Secondly, pay attention to adjust the diet structure, eat more fresh vegetables, supplement various vitamins, should not simply eat light food, should be mixed with meat and vegetables, eat enough and drink plenty of water, and maintain the nutritional balance in the body to enhance the body's immunity and prevent the occurrence of oral herpes. Patients with fever must pay attention to oral hygiene. They should form the good habit of gargling after meals and brushing their teeth before going to bed, especially after brushing their teeth. It is best to rinse your mouth with light salt water 1 3 times a day.