Recurrent herpes labialis is generally caused by virus infection, bacterial infection, fungal infection and other factors. You can wash the affected area with warm water first, and then apply anti-virus ointment externally. You can also take antibiotics orally for treatment. During the treatment, you should pay attention to keeping the affected area clean and hygienic, not eating too greasy and irritating food, not eating seafood and other hair, try to eat light, and also quit smoking and drinking, not staying up late often to prevent aggravating the disease, In addition, we should supplement more water and do a good job in the health care of the affected area.