Oral herpes, also known as facial herpes, is a common viral skin disease. The pathogen of the disease is herpes simplex virus. Herpes simplex virus (HSV) belongs to DNA virus, which is divided into type I and type II. Type I mainly infects the head and face, that is, herpes labialis; Type ⅱ mainly infects external genitalia, anus and other parts, namely genital herpes. Herpes labialis is mainly transmitted to each other through the secretions of nasopharynx, mouth and eyes, and can also be transmitted through skin contact. Chopsticks and rice bowls used by patients can also infect others if they are not disinfected. Newborns, children with severe malnutrition or other diseases are more likely to be infected with herpes simplex virus. Herpes simplex virus infection can be divided into primary and recurrent. Most primary infections have no clinical symptoms, and only a few can have clinical symptoms. Herpes gingivitis is the most common clinical type of primary herpes simplex. Most of the patients were 1~5 years old children. Typical symptoms are small blisters and erosion on lips, buccal mucosa, palate, etc., red and swollen gums are easy to bleed, and small blisters can also be seen on lips and around the mouth. After the blisters burst, they are eroded and have purulent secretions. Children are often accompanied by fever or even high fever, general malaise and local lymphadenopathy. The local pain of blisters is obvious, so children are often reluctant to eat. The whole course of the disease was about 7~ 10 days, and the scab on the rotten surface healed without scar formation. Corneal conjunctivitis, conjunctivitis with blepharoptosis, skin inoculation herpes, varicella-like rash, etc. can also occur in herpes simplex virus type I infection, and meningoencephalitis and herpetic hepatitis can also occur in a few serious children. Like genital herpes caused by herpes simplex virus type I infection, the human body can't completely remove the infected virus, and there are still a few viruses lurking in the body after healing. When some inducement causes the body's resistance to decline, the latent virus can multiply and cause pathological changes again, showing recurrent herpes. Recurrent herpes labialis mostly occurs in adults, especially in young people, but rarely in children. The most common site of the disease is around the mouth and red lips, so it is used to be called oral herpes. Some patients can also see recurrent herpes around the nostrils, and herpes gingivitis, herpetic keratoconjunctivitis, meningoencephalitis, etc. can also recur. Most recurrent herpes is characterized by several or more than a dozen rice-sized blister clusters, surrounded by blush. Most patients have mild symptoms and the course of disease is within 10 days. Many patients habitually think that herpes labialis is caused by "fever" and "hot air". The reasons are that these patients often have sore throat, fever, cold, drinking, stimulating diet, mental stress, lack of sleep and other incentives that lead to the decline of body resistance. However, due to menstrual cramps, excessive sexual life, long-term overdraft of mental and physical strength, chronic wasting diseases and other incentives, recurrent oral herpes. The diagnosis of oral herpes is mainly based on the history, symptoms and typical rash. It is a major feature of recurrent herpes that rashes easily recur in the same place. At present, there is no way to completely eradicate herpes simplex virus infection. After the occurrence of recurrent herpes labialis, taking some traditional Chinese medicine granules such as Radix Isatidis for clearing away heat and toxic materials has a certain effect on relieving symptoms. You can also take antiviral drugs such as acyclovir and valaciclovir, etc., and it is best to take them when the rash has just appeared or the skin in the frequent parts has premonitory symptoms such as burning or itching. According to the different conditions, interferon and two kinds of globulin can also be used for treatment. Valaciclovir ointment can also be used locally for oral herpes. Herpes keratoconjunctivitis can be externally applied with acyclovir eye ointment. Herpes often occurs in the red part of the lips and on the skin or mucosa around the mouth. We call it oral herpes. This is an oral disease caused by a viral disease (herpes simplex virus). This virus can live in saliva or skin. When the body's resistance is weakened, such as indigestion, fever or colds, this disease can be promoted. Patients are old and young, but children and young people are more common. Before the disease occurs, there is an itchy feeling and burning pain in the affected area, and then there is an inflammatory red macula, followed by groups of transparent or yellowish blisters like needle tips. This kind of blister closes and expands, which can extend to the mouth corner, upper and lower lips or other parts. After the bubble burst, liquid oozed out and became a shallow ulcer, accompanied by the feeling of bleeding and pain. Later, the ulcer became dry and had yellow scab skin, leaving no scars after scabbing. Patients with strong resistance will heal themselves after a week or two. Prevention and treatment: when patients have indigestion, colds or high fever, they should pay special attention to the cleanliness of their mouths. If the mouth, lips and people feel slightly itchy and burning, you can use sterilized cotton dipped in 70% alcohol or sorghum wine to wipe it. Three or four times a day, the effect is very good. In treatment, first of all, we should pay attention to oral hygiene. Generally, non-irritating potions, such as 2% soda water, can be used to clean the affected area and various parts of the mouth; After cleaning, it can be locally coated with chlortetracycline ointment or 2% gentian violet solution. If scab has formed, use 5% boric acid ointment to help remove scab skin. In addition, you need to drink plenty of boiled water and eat a digestible diet. The course of treating herpes simplex is generally 1 week. Even if it is not treated, it will recover after 1 week as long as there is no secondary bacterial infection. But the disease is easy to recur; Severe cases can cause swelling of adjacent lymph nodes. 1.local treatment: (1) 3% boric acid solution or physiological saline: used for blisters or local redness and swelling, wet compress until the damage subsides. (2)1%-2% gentian violet liquid medicine: used for patients with ulceration and externally applied to the affected area, twice a day. (3) 3% Acyclovir Ointment: topically applied several times a day. (4) 0.5% neomycin ointment: local application. 2. Systemic therapy: (1) gamma globulin, 3ml each time, intramuscular injection every other day 1 time, * * * 3-4 times. (2) Cimetidine: take 0．2g orally each time, 3-4 times a day for 5 days. (3) Take vitamin C, vitamin B2 or vitamin B complex orally. (4) Acyclovir: 0．2g orally each time, 5 times a day. In severe cases, it can be administered intravenously. Add 0.2-0．3g of acyclovir to 5% glucose injection wave for intravenous drip, 2-3 times a day for 5 days. (5) Antibiotics (penicillin, cephalosporin) are used for secondary infection.

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