Cold sores
Facts
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Facts
- Also called labial herpes.
- Herpes comes from the Greek word 'herpein' meaning 'to creep'.
- The herpes simplex virus type 1 (HSV-1) causes cold sores (fever blisters). The HSV Type 2 causes genital herpes. Nevertheless, both types can cause either oral or genital herpes.
- A HSV infection shows off initially with symptoms like redness, itching, tingling and burning, then a cluster of tiny blisters (vesicles) develop after which the blisters dry up, crusting takes place and finally everything clears. All within a span of 5 to 10 days.
- The common sites for outbreaks are the lips and face.
- The virus is contagious and is passed from one infected person to another person through direct contact with infected skin, saliva or from the sharing of items (e.g. towel. toothbrush, razor, utensils) used by an infected person.
- The first herpes outbreak (or what is known as primary herpes infection) may either produce no symptoms or cause fever, throat infection, an enlargement of local lymph nodes or painful swelling and open sores on the gums and inside the cheeks. Symptoms usually begin about a week after exposure to the HSV.
- Cold sores are actually herpes recurrences that may begin with general malaise. However, some people may never face a recurrence.
- Blisters should not be touched or risk spreading the virus to new places.
- A weak immune system (due to emotional or physical stress, fever caused by infectious diseases including colds, poor nutrition), food allergy, fatigue, menstruation, exposure to the sun's ultraviolet rays, physical irritation of the skin, trauma to the lips and other types of viral infections can spark off HSV activation.
- Either very cold or very hot or windy weather conditions can also trigger cold sores, especially when the lips become extremely dry.
- Once the HSV has gained entry into the body, it will reside in the body for life. This is because some of the HSV will land up in the nerve roots near the affected skin area and this actually prevents them from getting killed so the HSV will lie quietly dormant until further notice.
- The HSV feeds on an amino acid called arginine, found in almonds, beer, chocolates, seeds, cereal grains, gelatin, peanuts and raisins. An amino acid called lysine competes with arginine for absorption and entry into tissue cells. Lysine will block off the absorption of arginine and thus stop any HSV activity.
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