What Causes Fever Blisters, Meaning, Symptoms and How to Prevent

What is the meaning of fever blisters? Is it contagious? Get insights on what causes fever blisters, symptoms and how to prevent. You will also learn on the various pictures and how to prevent this infection.

What Is a Fever Blister – Meaning

what causes fever blisters

fever blister symptoms and stages

Fever blisters is also known as cold sores. It is a viral infection that causes small blisters that are filled with fluid to occur on the lips, around the mouth and on the edge of nostrils. It causes pain, itching and burning sensation before bursting to form crusting. It may take 3 to 4 weeks to heal without leaving a scar.

There is no any treatment or cure for fever blisters. After suffering from this infection, the virus remains dormant in your body and it may reactive to cause recurrences of the cold sores. Antibiotics can be used only to relieve the pain and discomfort caused by the blisters. Antiviral drugs such as acyclovir can be used to reduce how often the infection returns by suppressing the multiplication of the virus.  They can also be used on how to get rid of fever blisters fast. According to WebMD.

What Causes Fever Blisters

This a contagious viral infection caused by a virus known as herpes simplex. There are two major types of herpes simplex virus known as type 1 and type 2. The type 1 herpes simplex is the major cause of oral herpes known as cold sores or fever blisters. It usually develops on oral tissues of your body such as mouth, lips and other parts of the face.

Herpes simplex virus type 2 usually causes genital herpes although it can also affect other oral tissues but in rare cases. A big percentage of the oral tissue infections such as the fever blisters or cold sores are caused by type 1.

Once you get infected with herpes simplex virus, the virus remains in your body permanently after the outbreak. It travels and hide deeper into the nerves of your cheekbone in a dormant state. It can either remain inactive permanently or it can occasionally travel down in the nerves to the skin surface to cause a recurrence of the infection.

Recurrence of fever blisters is usually experienced by causing blood blisters in the mouth, at the edge of lips around the mouth, cheeks and at the edges of the nostrils. The initial occurrence of this infection causes severe itching, tingling and a burning sensation of the lips and other affected tissues of your body.

The recurrence of this infection is more common to individuals who are below 35 years as compared to those who are above this age.  Its recurrence is not severe as compared to the initial outbreak. It may only show a few symptoms that are likely to go away after some days. According to publication. Recurrence of fever blister is triggered by different conditions such as:

  • Weak body immune system due to diseases and other conditions
  • Menstruation in women
  • High sunlight intensity
  • High body temperatures
  • Physical and emotional stress
  • Hormonal imbalances
  • Surgery
  • Dental illness
  • Fever
  • fatigue

Although it is not proven, some studies also indicates that herpes simplex virus are hereditary. If your parents or other older member of your family suffered from this infection, you are also likely to experience the outbreak of this infection at some point of your age in life. More research need to be done to find more about this opinion and other factors that may be showing what causes fever blisters to be recurred.

Are Fever Blisters Contagious?

are fever blisters contigious

what causes fever blisters or cold sores on the lips and mouth

The virus that causes fever blisters are highly contagious especially during the blistering stage. You may be asking yourself, how long are fever blisters contagious? The blisters emerges after 3 days of infection, they collapse and start forming crusting after 2 weeks.  After this period they become less contagious but the possibility of causing an infection is still there until the blisters heals completely.

The spread of this infection is very high in children than the adults. It is mainly transmitted through kissing and body contact with infected person. An infected child is likely to spread the infection by rubbing the blister or sore and touching other children. The victim is also likely to spread the infection to other family members and relatives.

Herpes complex virus type 2 is common in adults than in kids. It mostly affects the genital. It is also highly contagious. It is transmitted from infected person to the other through sexual intercourse, body contact with cold sores and through touching

You need to be very careful with the blisters. A void touching the blisters, you can easily spread the infection to other parts of your body. For instance, touching the blisters on the lips then you touch the genitals, the virus can spread down there and cause more problems. Wash your hands thoroughly with soap after touching the blisters.

The only way to avoid getting this infection is to avoid direct body contact with an infected person during the blistering stage. You might think that the blisters are non-contagious after scabbing but it may scab and shed for several times before healing completely. You should also stay away from other people when having the blisters. Skin to skin contact is what causes fever blisters to spread easily from infected person to others.

After an infection, the virus may invade the moist membrane of your lips, mouth and throat. Some people may not experience the symptoms during the initial infection while others may start to experience blisters on the lips and around the mouth. The blisters may be accompanied with other signs such as tingling, swollen neck glands and burning sensation on the affected areas.

Leave the blisters alone, in case you should you pop a blister, wash the hand and control the ooze from spreading to other areas that surround the infected area.

Fever Blister Symptoms

Three to four after infection the HSV travels and invade your lips, mouth or throat membrane. They start to multiply rapidly. During this stage, you may experience body fatigue and swollen neck glands. It will therefore be followed by the symptoms below:

  • Tingling and itching. You may experience tingling and itching around the mouth and on the lips. Many people will experience this symptoms during the initial outbreak of the infection. Itching may spread up to the nostrils and other areas that may be affected.
  • Burning sensation. The lips, mouth or nostrils will start to develop inflammation that will accompany tingling and itching.
  • Small blisters that are filled with fluids develops on the edge of lips and nostrils. When the outbreak is severe, the blisters may also emerge on the cheeks. The severity of the blisters depends on what causes fever blisters such as the risk factors.
  • Oozing and crusting. The blisters may stay for 2 to 3 days before bursting to ooze. Small wounds experienced will start to form yellow crusting.

During the first outbreak, the symptoms are more severe as compared to when it recurs. Some people may experience other symptoms such as:

  • Muscle pains.
  • Headache
  • Painful gums
  • Fever

How long do cold sore last? The blisters may last for 2 to 3 weeks before healing completely. There are various fever blisters home remedy that are effective in helping the blisters to heal faster. However you may be required to look for medical treatment if your immune system is weak, the symptoms are severe, frequent recurrent of the outbreak or when the infection is affecting your eyes. According to mayoclinic.

Fever Blister Pictures

fever blisters prevention

how to prevent cold sores – product

You can also learn from the various pictures of cold sores. Small group of blisters develops on the edge of the lips and around the mouth. The virus enters into your body through tiny breaks on the mouth, lips and skin after kissing or coming in contact with cold sores from infected person

From the picture, we can see that this infection mostly affects the facial tissues. The area prone to this infection includes the mouth, lips, nostril and cheeks. It is also likely to affect other parts of the body such as the eyes, genitals, shoulders and legs. You need to be very careful while having the outbreak of fever blisters. Touching other parts of the body with infected hands aids in spreading this infection.

How to Prevent Fever Blisters

Fever blisters is a viral infection that has no cure. It usually heals on its own. Some treatments such as creams, pills and ointments may only be used to relieve the pain, discomfort and on how to get rid of fever blister fast. There are various ways you can employ to prevent what causes fever blisters as follows:

  1. Avoid any form of body contact with infected person either through kissing, body contact with the blisters or oral sex.
  2. Once infected with the virus, avoid exposure to high intensity sunrays and high temperatures that may trigger recurrence of fever blisters. It is an effective remedy on how to prevent fever blisters from coming back.
  3. Avoid sharing things like utensils and beddings with a person who has fever blisters. It may contain herpes simplex virus.
  4. Use sunscreens or lip balm that contain sun protection factor of about 15 to 30 to prevent ultraviolet rays from the sun that may trigger fever blisters. According to health line.
  5. Sharing of toothbrush, towels, razors and other objects with a person who has fever blisters increases the chances of getting the infection. Do not share such objects with a person who has cold sore outbreak.
  6. Avoid the risk factors such as stress, fatigue, high sunlight and extreme temperatures.
  7. When experiencing the outbreak of this infection, avoid touching the blisters. Your fingers may carry the virus to other parts of your body such as the genitals. Wash your hand thoroughly with soap and running water.
  8. After the initial infection, visit your doctor for medication that helps to prevent the recurrences of fever blisters.
  9. Avoid sharing the cold sore creams with a person who has an outbreak. It helps to prevent cold sores.
  10. Wash the towel and any other things in hot water that you used to clean the blisters before using them on any other part of your body.





Health line.