5 Best Essential Oils for Canker Sores (Backed with Data)

Looking for essential oils for canker sores? You have found the right page.

In this article, you’ll read about some of the best essential oils for canker sores that are evidence-based and considered safe to use.

Read: Essential Oils for Perioral Dermatitis

The Best Essential Oils for Canker Sores

best essential oils for canker sores

Here are some of the best essential oils:

1. Bergamot Essential Oil

Bergamot essential oil distilled from the peels of Bergamot oranges can provide instant relief and cure many oral issues including canker sores.

It can provide significant stress reduction which reduces the chances of getting canker sores caused by stress and related conditions.

In a 2016 study conducted to evaluate the antibacterial and antiviral properties of Bergamot essential oils, this oil was found effective on herpetic stomatitis. This viral infection in the mouth is known to cause ulcers and sores.

2. Cinnamon Essential Oil

The use of cinnamon essential oil can effectively restore blood circulation and tissue function in the mouth and treat canker sores.

It also promotes fibroblasts through proper blood circulation which provides quick regeneration of the mouth connective tissue.

One of the main causes of mouth ulcers is stress and issues with immunity. A recent study shows that Cinnamon essential oil is a potent immune booster but there’s a need for further investigations to clarify the oil’s clinical efficacy.

3. Eucalyptus Essential Oil

Eucalyptus essential oil contains eucalyptol which has anti-infectious, antioxidant, antiseptic, and anti-inflammatory properties.

It is rich in cineole which effectively heals cuts and wounds by killing microbes responsible for mouth infections such as streptococci and staphylococci. It also promotes tissue healing by stimulating fibroblasts in the wound area.

Studies show that eucalyptus essential oil can provide enough relief for temporary pain and improve the healing of the wound with its anti-inflammatory properties.

4. Peppermint Essential Oil

This is well-known for its anti-septic properties and pain-relieving properties, and can easily prevent the growth of mouth infections which can result in Canker sores.

A 2019 study on the anti-inflammatory properties of peppermint essential oil proves that this oil can improve immunity and speed wound recovery.

Another recent study shows that peppermint essential oil is very reliable in fighting oral pathogens and bacteria that can lead to mouth ulcers and gum diseases.

5. Tea Tree Essential Oil

Tea tree essential oil can help with canker sores caused by stress or mouth infections. With this oil, you can fight off bacteria and viruses in the mouth, as well as inflammation and soreness caused by various factors like allergies or stress.

According to this study, tea tree reduces the size and number of canker sores in the mouth significantly because of the positive impact on the regeneration of tissue.

Another report shows that tea tree essential oil has significant impacts on stress reduction which eventually helps with reducing both inflamed and non-inflamed lesions.


  • Do not use if pregnant or breastfeeding
  • Do not use on sunburned skin, or open wounds
  • Always dilute the essential oils with a carrier oil before use
  • Never use on children below 5 years of age

Side Effects

  • Headache
  • Burning sensation
  • Allergic reaction
  • Skin rash
  • Itching

How to Use Essential Oils for Canker Sores?

Following are a few ways you can use these essential oils:

1. Dab with a Cotton Swab

The first and most effective method of using essential oils is to dilute your favorite essential oil with a carrier oil (e.g coconut) and dab it on the affected area using a cotton swab as needed.

2. Mouth Wash

You can also use them as a mouthwash to get relief from canker sores. Add a few drops of essential oil to a cup of water and gargle.

Do it daily 2-3 times for a few days to start seeing improvement.

3. Aromatherapy

Another method of using essential oils is to inhale the aroma. Add a few drops of your favorite essential oil to a diffuser and inhale as needed.

The Bottom Line!

The above-mentioned essential oils for canker sores are some of the best and safest essential oils available.

For most people, they are safe to use. However, you may notice some discomfort with the use. In such a case, stop the use and consult with your doctor if necessary.

The content present on this page has not been evaluated by any medical authorities e.g FDA. All the information present is solely for informational purposes and is not a substitute for the medical advice provided by your physician. We do not aim to diagnose, treat, or cure any disease or illness.

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