Toothpaste on Cold Sore : Does It Really Work?

toothpaste on cold sore

Any medications taken are only meant to reduce the time taken to heal and prevent recurrence of the infection. The healing duration lasts about 10 to 14 days, forcing you to resort to alternative management.

Several home remedies have been tried by people and have proved beneficial, while some have led to a worsening. One of the best methods is the use of toothpaste on cold sores.

Did You Know?

  • Kissing also causes cold sore as there is a transfer of a virus that takes place from one person to another.
  • Cold Sores Can Appear In Many Other Places.

Does Putting Toothpaste On Cold Sores Overnight Work?

Toothpaste Benefits

Home remedies such as toothpaste for cold sores are moderately effective in relieving the pain and itchiness of cold sores. Since the herpes virus causes cold sores, it is quite apparent that toothpaste won’t kill the virus. Its main purpose is to dry out your blisters, making them less noticeable and provide temporary relief.

[Also Read: Top 7 Home Remedies For Cold Sores]

Mechanism of Toothpaste on Cold Sore

How Toothpaste Works on Cold Sore

  • Balances the Acidic PH

Acidic pH facilitates the replication of Herpes Simplex Virus (HSV). Foods and chemicals can make the pH around our lips acidic. Toothpaste helps to balance this pH and inhibits virus replication.

  • Dries the Blister

Toothpaste on cold sores(1) dries the blister and reduces the time taken by the blisters to drain.

  • Prevents the Outbreak of Cold Sores

Toothpaste, when applied before the eruption of blister inhibits the growth of blisters and reduces the healing period.

[Also Read: How to get rid of Cold Sores Naturally]

What Are the Other Benefits of Toothpaste?

1. Used for Daily Oral Hygiene

Being used for daily oral hygiene is one of the most common benefits of toothpaste. When brushed in a right way, toothpaste removes existing bacteria and plaque. Though toothpaste contains certain abrasive materials, it is gentle on the teeth enamel and strong enough to eliminate plaque from the teeth. You can also use a toothpaste containing fluoride.

2. Treats Pimples

Treat Pimples
Image: ShutterStock

Not only is toothpaste used for oral health, but it is also used for skin health. It helps treat pimples, which depends on some of its specific characteristics.

3. Whitens Skin

Toothpaste helps whiten the skin is another benefit of toothpaste. It is an effective remedy that you should try. To use toothpaste for this purpose, mix a tablespoon of toothpaste with a little lemon juice then apply the mixture to your face as a pack or mask to improve your skin tone.

4. Removes Wrinkles

Though not a cosmetic product, toothpaste can play an essential role in wrinkle removal. To get rid of wrinkles(2), you have to apply a little toothpaste to the wrinkled areas and leave it overnight daily. This will gradually reduce and fade away the wrinkles.

5. Deals with Dark Spots

Toothpaste helps conceal and deal with dark spots. You can make a mask from toothpaste and juice of tomato, and then apply it onto the face for dark spot removal.

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Cold sore is a skin lesion that occurs on the lips, caused by infection with the herpes simplex virus (HSV). Cold sores are extremely common. Most adults are infected with HSV, usually transmitted in childhood by regular close contact with parents, siblings, or friends.

Toothpaste for Cold Sores is the best remedy for such cold sores. Apply toothpaste on your cold sores to avoid medications, and for an effective cure.

[Also Read: Benefits of Coconut Oil for Cold Sores]


1. Can You Put Toothpaste on a Cold Sore?

Yes, you can put toothpaste on a cold sore to help relieve the discomfort, but toothpaste is not a miracle cure for herpes.

2. How Long Do I Keep Toothpaste on My Cold Sore?

Putting toothpaste on the cold sore for overnight helps you to cure cold sore quickly.

3. Why Putting Toothpaste on Cold Sore Works?

The problem of a cold sore is caused by HSV-1 or the herpes simplex virus, and it is said that few of the toothpaste contains the SLS or the sodium lauryl sulfate helps get rid of those blisters that are similar to the ones found during cold sores.

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