Herpes, also known as herpes simplex, is a cluster of blisters in the perioral area caused by an infection called human herpes simplex virus. It starts with burning, itching and flushing, and later presents as dense blisters that break down and are visible as vesicles, oozing and crusting. When the virus is latent in the ganglion after the first infection, the recurrence of herpes is caused when the immune function is temporarily depressed by certain factors such as cold, chills, fever, late nights, and emotional stress. The first thing you should do is not to be nervous after getting herpes in your mouth to avoid aggravating the condition, some people with good resistance can heal themselves. Some patients should also go to the hospital in time, the physician will give the appropriate antiviral drugs, such as acyclovir and valacyclovir, and immune regulating drugs, as well as some astringent dryness and infection prevention drugs in combination with herpes, and finally, pay attention to adjust their habits and work and rest to avoid these triggers that can cause herpes. In conclusion, herpes is very common and about 80% of people are carriers of the human herpes simplex virus. It is possible to resist herpes virus by maintaining a good lifestyle, a healthy lifestyle and having a healthy body.