fever blisters causes and treatment

What are Causes and Symptoms of Fever Blisters? Home Treatment for Fever Blisters

What are Fever Blisters?

Cold sores, every so often called fever blisters, are small groups of blisters generally found on the lip and around the mouth. The blisters on the skin are swollen, red and sore. The blisters might break open, causes clear fluid leakage, and then scab within few days. Blisters normally heal after many days to 2 weeks.

Blisters are caused by the herpes simplex virus(HSV). Generally, there are two types of herpes simplex virus and those are HSV-1 and HSV-2. Both virus types can cause mouth and lip sores and also genital herpes.

The herpes simplex virus typically enters the body via a break in the skin inside or around the mouth. It is generally spread when a person touches an infected fluid or cold sores like from sharing or eating razors or utensils, kissing an infected person, or coming in contact with that person’s saliva. A parent who has a blister often spreads the infection to their child. Fever blisters can also be spread to other areas of the body.

What are the Causes of Fever Blisters?

The herpes simplex virus (HSV) causes cold sores. HSV-1 and HSV-2 are extremely contagious viruses which can be transmitted effortlessly when there is a close contact.

Upon entering the body, the virus stays inactive much of the time, but, when there is a trigger for the virus, fever blisters develops.

One individual might have just one outbreak and there can be no relapse, while another individual may have three or four outbreaks every year.

Some patients might carry the virus and certainly not have an outbreak as it remains inactive. Infection with HSV-2 might be due to oral sex acts with an individual who has genital herpes.

What are the Signs and Symptoms of Fever Blisters?

Many individuals have the herpes simplex virus but might not have symptoms. They will only know they are infected if fever blisters appear. The first time a fever blister arises, as part of a primary infection, it might be severe.

After this, fever blisters are measured as symptom of HSV-1 and HSV-2. They persist as the only frequent sign that the virus is there in the body. In many cases, there are no other obvious symptoms or signs of a herpes infection.

Severe symptoms most probably affect the young children, because they may not had enough time to build up antibodies as a defence.

Symptoms of Fever Blisters:

  • Mouth or tongue pain
  • Lesions, ulcers, or blisters on the mouth or tongue
  • Lip swelling
  • Sore throat
  • Possible swallowing difficulties
  • High body temperature
  • Swollen glands
  • Headaches
  • Dehydration
  • Nausea

There might also be an infection of the gums and mouth known as gingivostomatitis. Generally, this lasts for 2 to 3 weeks, and it does not relapse.

Pharyngotonsillitis, which is an infection of tonsils and throat, may happen when there is primary infection in adults.

What are the Stages of a Fever Blister?

A fever blister will develop in various stages when it recurs. An itching, tingling or burning sensation around the mouth frequently specifies the start of a fever blister outbreak. Sores which are fluid-filled habitually on the lower lip edges, fever blisters on lips, fever blisters on nose, fever blisters on mouth, fever blisters on tongue, fever blisters on face, fever blisters on chin tend to follow this. There may be glands swelling.

The blisters often seem to arise in the same place every time. Irritation and pain may develop together with the fever blister. The blisters ooze and break. A yellow crust appears on top of the blisters and scabs off to expose pink skin which heals without scarring. Most fever blisters disappear within a week or two.

What are the Treatments for Fever Blisters?

Most fever blister outbreaks gets cleared within 2 to 3 weeks with no treatment. Few antiviral medications and ointments might lessen the duration of outbreak and ease pain and discomfort.

Antiviral Creams

Over-the-counter (OTC) fever blister antiviral creams can lessen the recurrent infection duration. Most creams comprise either penciclovir or acyclovir like Soothelip and Zovirax.

These are merely effective if applied as soon as symptoms arise and tingling recommends the onset of a fever blister.
The cream requires to be applied up to six times daily for 5 to 6 days for best result. This can eradicate the symptoms nonetheless not the virus. Creams cannot stop future incidences.

Oral Antiviral Medications

Acyclovir, famciclovir or valacyclovir are oral antiviral medications. They can knowingly cut or even stop a fever blister outbreak if taken when the first sign arises. An individual who has many outbreaks in a year may take these each day to stop outbreaks.

Treatments to Relieve Discomfort

Some OTC creams are accessible which does not comprise antiviral medication. Examples are Blistex, Bonjela or Cymex. The OTCs might lessen discomfort. These treatments do not speed up the healing process, but they may help if the cold sores are dry, itchy, or painful. People should apply these creams onto the blisters without rubbing, then wash their hands. People with fever blisters should not share creams.


What are the Treatments for Fever Blisters?
Treatments for Fever Blisters?

Tylenol or ibuprofen comprising paracetamol, might help ease pain. These are accessible in liquid form for younger patients. The pregnant women who have cold sores must discuss their treatment options with their physician.

Individuals who have, like, AIDS or HIV, who are experiencing chemotherapy, might face problems, as their immune system is compromised.
The infection might spread to other parts of the body, comprising the eye, and there is also a risk of brain swelling, mentioned to as encephalitis.
Those patients might be given antiviral tablets. Treatment depends on the patient’s medical condition and severity of symptoms.

Some of the Home Treatments for Mild Fever Blisters:

Home Remedies for Fever Blisters-natural treatment
Home Remedies for Fever Blisters
  • Press ice on it
  • Apply lemon balm
  • Take L-lysine
  • Try zinc therapy, oregano oil
  • Apply licorice extract
  • Use tea tree oil
  • Apply witch hazel
  • Use apple cider vinegar
Medically Reviewed By
Dr. Kaushal M. Bhavsar (MBBS, MD)Assistant Professor in Pulmonary Medicine, GMERS Medical College, Ahmedabad