Oral and labial herpes is a type of herpes simplex, also known as lip sores, which is a skin and mucous membrane disease caused by herpes simplex virus infection. Herpes labialis is prone to recurrent attacks, mainly related to the lowered resistance of the body. After treatment of herpes labialis, the virus remains latent in the patient’s body for a long period of time. When the patient’s body resistance is lowered due to the presence of late nights, mental stress, fatigue, cold, fever, lack of vitamins, long-term exposure to ultraviolet light or major infectious diseases, it can cause the herpes virus to become active and infected again, especially in people with poor health conditions who are more prone to recurrence. There is no ideal way to cure herpes, so it is important to prevent recurrence, mainly by eliminating the triggering stimuli and enhancing physical fitness to reduce the frequency of recurrence, such as strengthening physical exercise, appropriate running, walking, hiking and other sports; maintaining a light diet, eating a vitamin-rich diet; avoiding overwork, ensuring adequate rest, reducing late nights and excessive UV exposure, and actively treating the primary disease. Actively treat the primary disease, etc. In addition, the active use of antiviral drugs for control and shortening the treatment cycle can also have a preventive effect on the recurrence of the disease.