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Genital Herpes
(Herpes Simplex (HSV) –types 1 and 2)

Genital herpes is an infection that causes small, painful, fluid-filled blisters on the genitals, buttocks or thighs. These blisters break open leaving an indented sore or ulcer. These blisters and/or ulcers may occur on other parts of the body, including the mouth, face, or eyes.

Genital herpes is caused by the herpes simplex virus. Although it was previously believed that type 1 was responsible for lesions from the waist up and type 2 for those from the waist down, this has been shown to be incorrect. Genital lesions may be of either type 1 or type 2, and some sources report that currently up to 40% of newly acquired cases of genital herpes are from type 1 virus. The virus enters the body through a break in the skin or through mucous membranes. After the first outbreak of genital herpes, the virus migrates to nerve endings at the base of the spine, and lies dormant until the next outbreak.

The virus is spread through:

  • Sexual contact, including intercourse and oral and anal sex
  • Fluid from herpes blisters that gets on other parts of the body
  • An infected mother passing it on to her child during pregnancy or childbirth

The virus is most contagious when blisters are present. It is also contagious during the "shedding" stage, before blisters or sores are visible. The virus may also spread when inactive between outbreaks.

Risk Factors:
A risk factor is something that increases your chance of getting a disease or condition. The strongest risk factor for getting the herpes simplex virus is unprotected sexual contact with a partner infected with the virus.

Once the herpes simplex virus is present in the body, other risk factors can trigger the blisters to form. Often, the exact cause of an outbreak of genital herpes is unknown.

Risk factors for an outbreak of genital herpes in people already infected with the virus include:

  • Fever
  • Illness or infection
  • Stress
  • Weakened immune system
  • Menstruation
  • Long periods of exposure to sunlight
Symptoms vary dependent on whether this is the patient’s first (primary) episode or a recurrent episode. The virus remains dormant in between outbreaks and during this period the patient may not have any noticeable symptoms but may still be shedding (releasing) virus and able to spread the virus to a sexual partner. When the virus is active, symptoms also vary and some people still have no symptoms. The frequency of genital herpes outbreaks varies from person to person. Most people have outbreaks at least once per year.

PRIMARY INFECTION – occurs in a patient who is newly exposed to HSV. Although they may have no noticeable symptoms (asymptomatic), many experience a flu-like syndrome which includes fever and muscles aches. The lesions may be genital and/or present on other areas of the body, including the mouth/lips/tongue, and are usually larger in size and number than occurs in repeat or recurrent episodes. The lesions of a primary infection usually resolve within 2 weeks unless they get a second infection with a skin bacteria or fungus in which case they may persist for up to 6 weeks.

RECURRENT INFECTION – represents a reactivation of the herpes virus. This recurrence will vary from patient to patient in terms of severity, duration, and amount of virus shed. In general though, recurrences tend to result in fewer, smaller ulcers which usually last only 3-7 days. Symptoms are usually limited to the area around the blister or ulcer. It is important to remember that viral shedding can occur with or without visible lesions and that this asymptomatic (no symptoms or sores) lesions are currently responsible for over 50% of new infections

The doctor will ask about your symptoms and medical history, and perform a physical exam, particularly of the blisters and/or ulcers. Herpes lesions may look like other infections and may not be immediately visible if inside the urinary tract, vagina or cervix. The doctor may need to open a blister to swab it and send it to the lab or take a blood sample for testing.

Treatments to ease pain include:
  • Non-prescription pain relief drugs
  • Anti-viral creams and ointments
  • Cool cloths placed on blisters or sores
  • Lukewarm baths
  • Wearing loose fitting clothes

Treatments to speed healing include:

  • Oral anti-viral medications
  • Keeping blisters/sores dry when not bathing

Treatments for bacterial infection of the blisters/sores include:

  • Antibiotic medications
To prevent the spread of the herpes simplex virus:
  • Avoid sexual contact with an infected partner from the time the partner feels initial symptoms until blisters/sores have completely healed.
  • If your partner is infected, use latex condoms during sex when your partner shows symptoms of genital herpes.
  • Avoid oral sex if your partner has herpes blisters on the mouth or genital area.
  • Avoid touching blisters to prevent spreading to other parts of the body.
  • If you are pregnant and infected with the herpes virus, tell your doctor. Medication given to newborns immediately after birth can decrease the chance that they will be infected. If you have active herpes blisters when it is time to deliver your baby, the doctor may recommend that you deliver by Cesarean section.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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