Canker Sores
Natural Remedies

Canker Sores - Editor's Choice

| Modified on Mar 02, 2025
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Apple Cider Vinegar

Canker sores, also known as aphthous ulcers, are small, painful lesions that appear inside the mouth, causing discomfort and irritation. While they are not contagious, they can be quite bothersome. Fortunately, several natural remedies can help soothe pain, reduce inflammation, and promote healing.

Understanding Canker Sores

Canker sores typically present as round or oval ulcers with a white or yellow center and a red border. They differ from cold sores, which are caused by the herpes simplex virus and usually appear on the lips. Common triggers for canker sores include:

  • Stress and anxiety
  • Minor mouth injuries (biting your cheek or dental work)
  • Acidic or spicy foods
  • Vitamin deficiencies (B12, iron, folate, or zinc)
  • Hormonal changes
  • Certain medical conditions like celiac disease or Crohn’s disease

Natural Remedies for Relief and Healing

1. Apple Cider Vinegar (ACV)

Apple cider vinegar has antibacterial and disinfectant properties that can help heal canker sores. Dilute one tablespoon of ACV in a half cup of water and apply it to the sore using a cotton swab. You can also use it as a mouth rinse, but avoid overuse as its acidity may cause irritation.

2. Alum Powder

Alum, commonly used in pickling, has astringent properties that can shrink and dry out canker sores. Apply a small amount directly to the sore and leave it on for a minute before rinsing with water.

3. Aspirin

Crushed aspirin can act as a pain reliever and anti-inflammatory when applied directly to the sore. Be sure not to swallow the aspirin while using it topically.

4. Aloe Vera

Aloe vera is known for its soothing and healing properties. Apply fresh aloe vera gel directly onto the sore several times a day to help reduce pain and inflammation.

5. Salt Water Rinse

A saltwater rinse is a simple and effective disinfectant. Mix one teaspoon of salt in a glass of warm water and rinse your mouth for about 30 seconds. Repeat several times a day for best results.

6. Baking Soda Paste

Baking soda helps neutralize acidity and reduce irritation. Mix a small amount of baking soda with water to form a paste and apply it directly to the sore. Let it sit for a minute before rinsing.

7. Honey

Honey has antibacterial and anti-inflammatory properties. Apply raw honey to the canker sore several times a day to speed up healing and reduce pain.

8. Coconut Oil

Coconut oil is a natural antimicrobial that can soothe pain and prevent infection. Dab a small amount onto the sore using a cotton swab.

9. Tea Tree Oil

Tea tree oil has antiseptic properties. Dilute a few drops with water and apply it to the sore with a cotton swab.

10. Chamomile Tea

Chamomile is known for its soothing and anti-inflammatory benefits. Rinse your mouth with chamomile tea or apply a damp chamomile tea bag to the sore.

11. Sage Rinse

Sage has antibacterial and astringent properties. Rinse your mouth with a cooled sage tea infusion to relieve discomfort and promote healing.

Prevention and Care

To reduce the occurrence of canker sores, consider the following tips:

  • Maintain good oral hygiene and use a soft-bristled toothbrush.
  • Avoid foods that trigger irritation, such as acidic and spicy foods.
  • Reduce stress through relaxation techniques like meditation or yoga.
  • Ensure a balanced diet rich in essential vitamins and minerals, especially B12, zinc, and iron.

When to See a Doctor

Although canker sores usually heal within 7-14 days, consult a healthcare professional if you experience:

  • Canker sores lasting longer than three weeks
  • Large sores or multiple sores at once
  • Severe pain or difficulty eating and drinking
  • Recurring sores or additional symptoms like fever or swollen lymph nodes

Conclusion

Natural remedies like aloe vera, salt water, baking soda, honey, and apple cider vinegar provide effective relief for canker sores. These treatments help soothe discomfort, reduce inflammation, and accelerate healing. Maintaining good oral hygiene and avoiding triggers can also prevent future outbreaks.

Share Your Experience

Have you tried any of these remedies for canker sores? Let us know which treatment worked best for you! Continue reading below for feedback from our readers who have successfully used these natural treatments.


The comments below reflect the personal experiences and opinions of readers and do not represent medical advice or the views of this website. The information shared has not been evaluated by the FDA and is not intended to diagnose, treat, or prevent any disease or health condition. Always consult a qualified healthcare professional for medical concerns.

Aspirin

Posted by Miriam (San Francisco) on 11/09/2020
★★★★★

Editor's Choice

Thumbs up for the aspirin cure, I just put the aspirin on the tongue as close as I could get to the sore. Within two hours the pain had lessened and next day it was nearly gone. I also tried ACV but it was uncomfortable and didn't do much for me.

I love Earthclinic!


L-Lysine

Posted by Uc Mom916 (Kent, Wa) on 12/24/2016
★★★★★

Editor's Choice

Canker sores - I started getting them when I was 5 yrs. old. I was eating alot of chocolate. I had a mouth and throat full of canker sores. This progressed as I got older. Early twenties, I would eat hot dogs and bologna....and more canker sores came. I started noticing the connection. I also started doing alot of research on this and many other health related things. What I came across was a book on Amino Acids and how they work and what symptoms you may have if you are depleted. Aha, when you have too much Arginine and not enough Lysine...they will come.

At the tiniest of inklings that I'm getting a canker sore, I take L-Lysine 2 grams (4 - 500mg) capsules on an empty stomach, 3 times a day. I have had a bit of runny stool, but it goes away. The next day, the canker sore has disappeared. I am so grateful for Lysine.



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