Home Remedies for Fever Blister

The virus HSV-1 and HSV-2 can cause a fever blister or cold sore that usually occur in groups and cause red, swollen, and sore wounds. A clear fluid may be released by these blisters that scabs over after a few days. Fever blisters are cont

Updated: October 12, 2019

The virus HSV-1 and HSV-2 can cause a fever blister or cold sore that usually occur in groups and cause red, swollen, and sore wounds. A clear fluid may be released by these blisters that scabs over after a few days. Fever blisters are contagious during this time. It can last from 10 to 14 days and may also show up on the tongue or gums. They can spread or infect other parts of the body, including the genitals. The virus can also lie dormant in your system and can recur at any time. This happens generally during an outbreak when you are not well.
As essential oils and topical treatments can irritate your skin, you should always perform a patch test before using these. You may also need to dilute essential oils with a carrier oil such as vegetable or nut oil. The ratio is about one drop of essential oil per teaspoon of carrier oil.
To helps avoid contamination and reinfection always make a practice to use a clean cotton swab or pad when applying these remedies.

Press Ice on Blister:

Ice can help treat inflammation by reducing blood flow to the area. It also numbs the area which gives relieve from pain. But this treatment is only temporary. Wrap an ice pack with a towel or cloth and place it on the cold sore for at least 5 minutes. You can apply an ice cube directly to the cold sore if it doesn't cause too much pain.

Apply Lemon Balm:

To treat fever blister, you can apply a cream, ointment, or lip balm containing lemon balm to the affected area. This should be done several times per day. You may also put diluted essential oil on a cotton ball and hold it on the sores for a few minutes. Continue using lemon balm for a few days after your sores have healed. You can also drink lemon balm tea. However, avoid taking it with sedative medications as it may cause drowsiness.

Take L-lysine:

L-lysine is an amino acid that can help shorten the duration of a fever blister. This is a supplement which act as a preventative and treatment. As lysine can interfere with amino acid that promotes the growth of the fever blisters, it can be helpful.The recommended dose is 500 to 3000 milligrams. You can follow the recommendation on the package.

Try Zinc Therapy:

Zinc is an essential enzyme that helps wounds heal. Therefore topical zinc may help with your fever blisters. A zinc oxide and glycine cream can shortened the duration of cold sores compared to a placebo cream. A dose of 22.5 mg twice a day every other month can help reduce recovery time. You have to apply the zinc cream four times a day for topical treatments.

Dab licorice extract:

Licorice root can be used as a treatment for cold sores for its antiherpetic activity. You can apply diluted licorice extract on your fever blister with a cotton swab or finger tips. If you are using pills, make a paste with coconut or almond oil and apply to the affected area. As it may cause unintended side effects by taking licorice root orally, take advise from your doctor before staring it as a treatment for fever blister.

Use tea tree oil:

It is an effective antiviral treatment which may also help to speed up the healing process and prevent plaque formation.Topically it can be used by adding diluted tea tree oil to a cotton ball. Dab it on the sore spot several times per day, and continue treatment until your skin is completely healed.

Apply witch hazel:

Eitch hazel is found to be effective in fighting the herpes virus and in reducing inflammation. Witch hazel is also an astringent and dries out the area, which may help with healing. Apply witch hazel directly to the skin using a moistened cotton ball. Hold it onto your skin using light pressure till you feel comfortable and continue treatment until your skin is fully healed. Make sure not to rub it on the affected area.

Apply Oregano Oil:

Oregano oil is shown to inhibit different animal and human viruses, including herpes. You should apply diluted oregano oil with a cotton ball and hold it on the affected area for as long as you feel comfortable. Repeat several times throughout the day, and continue treatment until your blisters heal completely. 

Use apple cider vinegar:

Apple cider vinegar has anti-infective and antifungal properties that may help healing fever blister. Apply diluted ACV to the affected area several times per day using a cotton ball. You can hold it there for a few minutes at a time. Treatment should be continued until healed. It is unsafe to consume in large amounts and can cause skin irritation.

Risks and warnings:

If you are pregnant or nursing, the above remedies are not recommended for you. Avoid using essential oils on children or older adults. It is safe to begin with a small amount of your chosen remedy. This is done to see how your skin reacts to the remedy. If it irritates your skin with a prolonged burning sensation discontinue using it.
As herbal remedies and supplements can interact with any medications and cause unintended side effects, talk to your doctor if you plan on taking oral supplements before starting any.


Certain triggers may activate the virus and cause an outbreak. These include:
  • fatigue
  • depression
  • hormone fluctuations
  • stress
  • injury or trauma to the afflicted area
  • extensive sun exposure
  • dental procedures
Lowered immunity and other health conditions that can also trigger an outbreak include:
  • high fever
  • muscle aches
  • sore throat
  • headache
  • swollen lymph nodes
  • dehydration

Risk for fever blisters:

A fever blister outbreak may be a sign of poor nutrition or of an immunity disorder. People with the following conditions are prone to fever blister outbreaks:
  • weakened immune systems
  • severe burns
  • eczema
The virus can spread to the hands, eyes, or the brain in more serious cases. If your blisters spread to another part of your body, it requires immediate medical attention.
A normal fever blister episode heals within two weeks. Symptoms will reduce after a few days, but it will take some more time for the skin to completely heal. During an episode you should avoid:
  • touching your fever blister
  • eating sugar, alcohol, acidic foods
  • reusing chap sticks or other products that touch your mouth
  • kissing or sharing utensils, straws, and toothbrushes if you have an open sore
There is always a possibility of recurrence of fever blister. However, the second one will be less sever and they lessen in severity as you grow older.

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