Cold Sores
(Herpes Simplex Infections, Non-Genital) Medical Authors: Mohamad El Mortada, MD, MaryAnn Tran, MD, Corrine Young, PharmD, and Mary D. Nettleman, MD, MS, MACP
Medical Editor: Melissa Conrad St�ppler, MD Causes, Symptoms, and Treatment of Cold Sores Cold sores. These small, painful sores are caused by herpes simplex virus type 1. Once you are exposed to the virus, it can hide in your body for years. Things that trigger the virus and lead to cold sores include: - Getting too much sun
- Having a cold or infection
- Having your period
- Feeling stressed
Cold sores can spread from person to person. They most often form on the lips and sometimes under the nose or chin. The sores heal in about 7 to 10 days without scarring. You can buy over-the-counter drugs to put on cold sores to help relieve pain. If you get cold sores a lot, talk with your doctor or dentist about a prescription for an antiviral drug. These drugs can help reduce healing time and the number of new sores. SOURCE: Womenshealth.gov What are herpes simplex infections? Herpes simplex virus (HSV) can cause infections that affect the mouth, the face, the genitals, the skin, the buttocks, and the anal area. This article will concentrate on non-genital herpes. Many people acquire the virus and have no symptoms. For others, painful blisters appear near the area where the virus entered the body. Typically, the blisters heal completely but reappear at some point in the future when least expected (or desired). In between attacks, the virus resides deep in the roots of the nerves that supply the involved area. When herpes simplex lesions appear in their most common location, around the mouth and lips, people often refer to them as "cold sores" and "fever blisters." What causes cold sores? There are two types of HSV, type I and type II. In general, type I, also known as herpes labialis, causes infections above the waist, most commonly as oral "cold sores." Type II infections occur mainly below the waist, leading to genital herpes. However, both types of HSVs are capable of infecting the skin at any location on the body. Herpes infections, no matter where they occur first, have a tendency to recur in more or less the same place. Such recurrences may happen often (for example, several times per year) or only occasionally (for example, once or twice a year). What makes herpes (cold sores) recur? After infection, the virus enters the nerve cells and travels up the nerve until it comes to a place called a ganglion. There, it lays quietly in a stage that is referred to as "dormant" or "latent." At times, the virus can become active and start replicating again and travel down the nerve to the skin, causing sores and blisters. The exact mechanism behind this is not clear, but it is known that some conditions seem to be associated with recurrences, including - a fever, a cold, or the flu;
- ultraviolet radiation (exposure to the sun);
- stress;
- changes in the immune system;
- trauma to the involved area;
- sometimes there is no apparent cause of the recurrence.
How do cold sores spread? Infections caused by HSV are contagious. The virus is spread from person to person by kissing, by close contact with herpetic lesions, or even from contact with apparently normal skin that is shedding the virus. Infected saliva is a common means of virus transmission. People are most contagious when they have active blister-like sores. Once the blisters have dried and crusted over (within a few days), the risk of contagion is significantly lessened. However, a person infected with HSV can pass it on to another person regardless of the presence or absence of symptoms and visible sores or blisters. This is because the virus is sometimes shed in saliva even when sores are not present. Despite popular myth, it is almost impossible to catch herpes (cold sores) from surfaces, towels, or washcloths.
Patient Discussions - Viewers share their comments
Suggested Reading on Herpes Simplex Infections (Cold Sores, Non-Genital) by Our Doctors -
- Stress
- Stress occurs when forces from the outside world impinge on the individual. Stress is a normal part of life. However, over-stress, can be harmful. There is now speculation, as well as some evidence, that points to the abnormal stress responses as being involved in causing various diseases or conditions.
- Genital Herpes In Women
- Genital herpes, a viral infection by the herpes simplex virus (HSV), is transmitted during sexual contact with the mucous-covered linings of the mouth, vagina, or the genital skin. A typical outbreak begins with an itching or tingling sensation followed by redness of the skin and blister formation. The blisters and ulcers that form when the blisters break are painful to the touch and last from 7 days to 2 weeks. Though there is no cure for herpes, there are ways to treat outbreaks.
- Fever
- Although a fever technically is any body temperature above the normal of 98.6 degrees F. (37 degrees C.), in practice a person is usually not considered to have a significant fever until the temperature is above 100.4 degrees F (38 degrees C.). Fever is part of the body's own disease-fighting arsenal: rising body temperatures apparently are capable of killing off many disease- producing organisms.
- Miscarriage
- A miscarriage is any pregnancy that ends spontaneously before the fetus can survive. Miscarriage usually occurs before the 13th week of pregnancy. The cause of a miscarriage cannot always be determined. The most common causes of a miscarriage in the first trimester are collagen vascular disease (lupus), hormonal problems, diabetes, chromosomal abnormalities, and congenital abnormalities of the uterus.
- Flu (Influenza)
- Influenza (flu) is a respiratory illness caused by a virus. Flu symptoms include fever, cough, sore throat, runny nose, headache, fatigue, and muscle aches. The flu may be prevented with an annual influenza vaccination.
- Erythema Nodosum
- Erythema nodosum is a skin inflammation that results in reddish, painful, tender lumps most commonly located in the front of the legs below the knees. Erythema nodosum can resolve on its own in 3 to 6 weeks, leaving a bruised area. Treatments include anti-inflammatory medications and cortisone by mouth or injection.
- Canker Sores
- Canker sore is a small ulcer crater in the lining of the mouth. Canker sores are one of the most common problems that occur in the mouth. Canker sores typically last for 10-14 days and they heal without leaving a scar.
- Cold, Flu, Allergy Treatments
- Before treating a cold, the flu, or allergies with over-the-counter (OTC) medications, it's important to know what's causing the symptoms, which symptoms one wishes to relieve, and the active ingredients in the OTC product. Taking products that only contain the medications needed for relieving your symptoms prevents ingestion of unnecessary medications and reduces the chances of side effects.
- Meningitis
- Encephalitis is a brain inflammation that causes sudden fever, vomiting, headache, light sensitivity, stiff neck and back, drowsiness, and irritability. Meningitis is an infection that causes inflammation of the meninges that surround the brain and spinal cord. Symptoms of meningitis include high fever, headache, nausea, vomiting, and stiff neck.
- Genital Warts in Men (HPV Virus)
- The HPV virus (genital warts) in men can cause health problems. Genital warts are confined primarily to the moist skin of the genitals or around the anus. Genital warts are caused by the human papillomaviruses (HPVs), which are transmitted through sexual contact.
- Ganglion
- A ganglion is a fluid-filled cyst that forms from the joint or tendon lining. Ganglia are most frequently found in the ankles and wrists and are usually painless. A ganglion often resolves on its own. Aspiration of the ganglion fluid or surgery may be necessary.
- Herpes of the Eye
- Herpes of the Eye is developed by the herpes simplex 1 virus that usually lives around the nerve fibers in humans. Symptoms of herpes of the eye include pain in and around only one eye, redness rash or sores on the eyelids, redness of the eye, and swelling and cloudiness of the cornea.
- Scars
- Scar formation is a natural part of the healing process after injury. The depth and size of the wound incision and the location of the injury impact the scar's characteristics, but your age, heredity and even sex or ethnicity will affect how your skin reacts.
-
-
-
-
-
-
|
|  |
From WebMD Skin and Beauty Resources Featured Centers Health Solutions From Our Sponsors
Herpes Simplex Infections (Cold Sores, Non-Genital) Genital Warts in Men (HPV Virus) � HPV Virus (Genital Warts ) in Men Introduction Much of the information about HPV virus (human papillomavirus) centers on women, since having the virus increases their risk of getting cervical cancer. But HPV virus in men can cause health problems, too. So it's important for men to understand how to reduce the risks of HPV infection. It can increase a man's risk of getting genital cancers, although these cancers are not common. HPV can also cause genital warts in men, just as in women. More than half of men who are sexually active in the United States will have HPV at some time in their life. Often, a man will clear the virus on his own, with no health problems. Risks of HPV Virus in Men Some of the 30 or so types of HPV associated with genital cancers can lead to cancer of the anus or penis in men. Both of these cancer types are rare. In those with a healthy immune system, they are even rarer. Abou... Read the Genital Warts in Men (HPV Virus) article �
| 
No comments:
Post a Comment