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Important Things To Know About Night Fever (Herpes Labialis)

Important Things To Know About Night Fever (Herpes Labialis)


A cold sore commonly called “Night fever or Fever blisters” in Nigeria is a common viral infection with tiny, fluid-filled blisters on and around the lips region/lining. These blisters are usually grouped into patches.

After the blisters break, scab forms, Cold sores usually heal between fourteen to twenty-one days without leaving a scar.

Cold sores are caused by the herpes simplex virus type 1 (HSV-1) and less common herpes simplex virus type 2 (HSV-2), this virus can spread from one person to another by close contacts, such as kissing, oral sex, sharing of eating utensils, razors, and towels.

Most times, the symptoms are not visible in some persons but the virus still remains contagious. There’s no cure for cold sores, but treatment can help manage sores. Antiviral pills or creams can help sores heal more quickly.

Stages of occurrence

  • Sweet tingling and itching sensation: this sensation usually occurs a day or two around the lips before the occurrence of the sore.
  • The occurrence of Blisters: these are small fluid-filled blisters that usually occur along the lips border, nose, cheeks, or mouth.
  • Oozing and crusting: The small blisters may merge and then burst, leaving shallow open sores that ooze and crust over. This is the most contagious stage.
  • Fever blisters may release a clear fluid that scabs after a few days. During this time, fever blisters are most contagious.

However, the virus that causes fever blisters can continue to be contagious. Causes of night fever

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  • Fever
  • Painful and wounded gums
  • Sore throat
  • Headache
  • Muscle aches

Note that the Herpes virus lies dormant in nerve cells in the skin and may remerge as another cold sore at the same place as before.

These are the Important Things To Know About Night Fever.

Risk Factors

  • Poor nutrition or an immunity disorder
  • Dental procedures
  • Hormone fluctuations
  • Weakened immune systems
  • Autoimmune disease
  • Cancer
  • HIV
  • Stress
  • Menstruation

Precautions to Observe when Blisters Occur

  • Avoid touching fever blister
  • Avoid reusing lip balm or other products that are likely to have contact with your mouth
  • Avoid kissing and oral sex when there’s an outbreak.
  • Avoid sharing utensils, straws, and toothbrushes when there’s an outbreak.
  • Avoid intake of alcohol, acidic foods, and smoking as they may irritate any sores when there’s an outbreak. Causes of night fever

Preventive Measures

There is no drug or vaccine for HSV-1 or HSV-2, but there are precautions that can be taken to prevent outbreaks. They include the following:

  • Stress reduction measures
  • Implement measures to boost immunity
  • Treatment should start sat the first sign of an outbreak
  • Food/diet to support your immune system.

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