Genital herpes is a common infection caused by a virus. The virus is called the herpes simplex virus, or HSV. It causes painful blisters that break open and form sores in the genital area.
There are 2 types of HSV, type 1 and type 2. HSV-1 usually infects the lips and mouth. HSV-2 usually infects the genital area. However, you can have infections by either virus in any of these places.
You can become infected with the virus by contact with broken blisters or sores on the genitals, mouth, or rectal area of an infected person. The infection can be passed from person to person during sex. You may spread it from one part of your body to another if the virus gets on your hands.
Once you are infected, the virus stays in your body for the rest of your life. Most of the time the virus is inactive, which means it is staying in certain cells in the body and not causing symptoms. However, the virus may become active and cause sores again. The sores may come back often. Outbreaks of sores may occur with physical stress, for example, if you wear tight clothing, have sex without enough lubrication, or have another illness. Emotional stress or menstruation may also cause an outbreak. Most people with herpes have recurrent infections.
Herpes is very contagious when you have sores. The virus may also spread to others even if you have no symptoms, or for up to 3 months after the sores have healed.
Symptoms usually occur within 2 weeks after the virus first enters your body. They may include:
The sores appear first as tiny clear blisters. Usually they occur in groups of several blisters, but sometimes there may be just a single blister. The blisters usually quickly lose their thin tops. Then they look like small (1/8 inch to 1/4 inch wide), pink or red shallow sores. The blisters may be painful and oozing. They may become covered with a yellowish dried crust.
The symptoms of herpes are usually most severe during the first outbreak.
Some people infected with herpes have no symptoms.
Your healthcare provider will ask about your symptoms and examine you. Cells or liquid from one of the sores will be tested in the lab for the virus. Blood tests may be done to see if you have had a previous herpes infection.
Genital herpes cannot be cured. The virus will stay in your body. However, your healthcare provider may prescribe antiviral medicine such as acyclovir, famciclovir, or valacyclovir to relieve your symptoms more quickly. Even though you are taking the medicine, the infection will still be very contagious as long as you have sores, but the medicine will shorten the amount of time you are contagious. If you are pregnant, discuss the use of these medicines with your provider.
Pain medicine such as acetaminophen or ibuprofen can help relieve pain and fever. Sitting in a bathtub of warm water 2 or 3 times a day may also help soothe the pain.
The sores usually start to heal after about 5 days. They generally disappear in 1 to 3 weeks. Sometimes they may last for as long as 6 weeks, especially if you also have a bacterial or yeast infection of the vagina.
The sores rarely leave scars.
About half of herpes-infected people have repeat outbreaks of sores. These recurrences tend to be milder than the first bout of herpes and the sores heal more quickly.
There are many herpes counseling groups that give support and help to people who have herpes. You can get more information by calling the National Sexually Transmitted Disease Hotline at 1-800-227-8922.
You may have fewer recurrences if: