Canker Sores
Natural Remedies

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Cure Canker Sores with Inexpensive Home Remedies

| Modified on Aug 20, 2021

Alum, H2O2, Aspirin
Posted by BC Boy (Smithers, Canada) on 05/17/2008
0 out of 5 stars

Remedy Side Effects for Canker Sores: I found Earth Clinic while googling for a canker sore remedy. I was relieved to find so many positive responses to these remedies. So I went and picked up several of the remedies hoping at least one would work as good as stated. I started with Alum. I dabbed a wet finger into the powder and applied it to the 4cm canker sore inside my bottom left gum. At first it stung like salt on an open wound. Then it subsided to the feeling of a butcher knife cutting into my gum. After a half an hour of this I rinsed my mouth out with water and spend 15min in front of the bathroom mirror applying H202 with a q-tip. The pain of applying the H202 eventually subsided to a pounding throb. My mouth was watering so bad I had to stuff kleenex inside my gums to dam the flood. The H202 eventually stopped sizzling so I rinsed and tolerated the dull throbbing ache for 1/2 hr. Finally I applied crushed aspirin to the sore. the aspirin burned but not as much as the alum. My mouth was now feeling like I'd been punched in the face.... twice. My bottom lip was puffy and my gums were numb everywhere except for the sore. I tolerated that for another 15min and finally rinsed the aspirin out with a cold budweiser. It's now been 2hrs later and I'm on my 7th beer and the pain has almost completedly subsided in the past 10min. So far the side affects of the treatment has been tolerable. Hopefully my head won't hurt as bad as my mouth in the morning....

Alum, H2O2, Aspirin
Posted by Tricia (Ireland) on 07/02/2009

I can't stop laughing. Next time try hitting 7 beers before you start your remedies.

Baking Soda
Posted by Darlene (Kewaskum, Usa) on 12/12/2011
5 out of 5 stars

My husband has suffered from Canker sores for many years. They would pop up almost immediately with certain tomato products and raw red high acid tomatoes. When we learned about baking soda for balancing pH, the logical conclusion was to use it to fight the canker sores. I can testify that if he knows one is on the way, the baking soda water will stop it in its tracks.

Lavender Oil
Posted by Jean J. (Wheeling, Il) on 10/18/2018
5 out of 5 stars

When I feel a canker or cold sore starting, I liberally apply Lavender essential oil 3 or 4 times a day and it's gone in no time. Stops it in its tracks.

Posted by Uc Mom916 (Kent, Wa) on 12/24/2016
5 out of 5 stars

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.

Activated Charcoal
Posted by Mama To Many (Tennessee, Usa) on 11/12/2013
5 out of 5 stars

A few weeks ago my daugther bit her cheek when chewing. You know how that end up biting the same spot over and over and it is uncomfortable. I know when that used to happen to me, I always ended up with a canker sore. I realized the reason it kept happening is because the mild trauma of having been bitten causes some swelling, so it is easy to keep on biting the same spot. I had my daugther place a charcoal tablet against the spot until the charcoal dissolved. (This actually can take 10 minutes or so.) By the time the charcoal had dissolved, her problem had resolved.

Yesterday, I did the same thing! I bit my cheek and it was irritated. I could feel a little bubble. I put a charcoal tablet on it and let it dissolve. By the time it dissolved, I no longer felt irritation and the bubble was smaller. Within an hour or two, I realized the little bubble was completely gone.

Charcoal is anti-inflammatory, so I think that is why this worked. Charcoal tablets are also good for canker sores, the earlier caught, the better. I suspect this treatment would keep a canker sore from forming where the mouth has had trauma. Too bad I didn't know this long ago, but better late than never!

Have a great day!

~Mama to Many~

Coconut Oil
Posted by Maya (Munich) on 08/27/2017
5 out of 5 stars

My 6 year old son got a canker sore a few days ago. The pain was getting progressively worse. I tried rubbing some coconut oil on the sore at bedtime... it was gone by morning. Would use it again as he gets canker sores frequently.

Avoid SLS Toothpaste
Posted by Homero (New York) on 04/25/2016
5 out of 5 stars

I had suffered for more than 20 years with moth sores or canker sores. I talked to so many doctors. Some of them talked to me about drinking more water or taking some vitamins. I tried everything. Nothing worked until one day I read somewhere about SLS (sodium laureth sulphate) which is a chemical that makes the toothpaste more foamy. I switched to sls free toothpaste, and guess what? I have never got them again.

Baking Soda
Posted by Mama to Many (Tennessee) on 11/25/2014
5 out of 5 stars

I had a canker sore in my mouth last night. It was red and inflamed and had a white patch in the middle. But my son had just put a coat of finish on my kitchen floor and I couldn't access any of my herbs, charcoal, etc, since they were in the kitchen. I was looking around my bathroom for something I could try and saw my home made tooth powder. Baking soda!! I put some on the spot three times before bed. Tonight I realized it must have worked. I looked in my mouth and saw no sign of the sore! For the record, my tooth powder also has bentonite clay and peppermint essential oil in it. But I think it was the baking soda.

~Mama to Many~

Posted by Daniel X (Houston, TX) on 08/31/2014
5 out of 5 stars

I had horrible canker sores in my mouth; tongue, inner lips, cheeks. Ridiculous pain, could barely eat or speak and they came in groups; 2-4 at a time, and a new crop in different spots would pop up just as the others were about to be healed, which took 3-4 weeks. I never had these before in my life and I'm 56. Anyway, this went on for months and I was praying for help. I tried a list of things like oil pulling, various supplements etc. Bottom line; after doing my own research including reading all the posts on this site, and a few others, I realized that my tongue was coated white in the morning and took that as an indication of systemic candida.

I took the roughly 1/8 teaspoon of 20 Mule Team borax powder dissolved in water and noticed dramatic results starting in about 12 hours. There were two sores at the time, one just beginning, it went away fast, the other healed fairly quickly and now, 2 weeks later, no new ones have popped up and my tongue is nice and pink again. I didn't notice much of a "die off" reaction, only a minor headache in the temple area one day which might've been something else. I have been on a raw food diet for over 2 years so I know my body is fairly clean at this point. I also noticed remarkable clarity of mind and easy concentration within 12 hours of taking borax, along with a feeling that I was vibrating like a purring cat or a well tuned car, actually quietly vibrating. That seems to have gone away somewhat although I still feel mentally clear. So thank you Ted and all and hopefully someone else suffering from canker sores can benefit from my experience.

Posted by Lars (Nyc, Ny) on 12/07/2011

I have proven over the years that when I have been "irregular" (constipated) - within a day or two non-mouth-bite related canker sores will surface. I believe this is due to build-up of toxins in the body from inability to eliminate them due to the reason I wrote above.

The toxins seem to breakout in one of the softest tissues in the body - inside the mouth.

Next time you have a break-out of canker sores, take a stool-softener or some other method to induce bowel movements... I have never heard anyone else state that constipation=canker sores, but if my advice helps you, please post your experience.

I hope this helps everyone.

Alum, H2O2, Aspirin
Posted by CC (Las Cruces, NM) on 07/01/2009

You are too funny! I know what you mean when you just can't take it anymore and you are willing to try anything! You really ARE willing to try anything! Cheers to you!

Baking Soda
Posted by Amanda (West Palm, Florida) on 11/08/2007
5 out of 5 stars

I had the worst canker sore on my gum right behind my last upper molar. It hurt to even swallow and actually woke me up at 2:00 am in the morning last night. Apparently the Zilactin-B I put on it was not working! I stumbled upon your website and decided to try the only 2 things I could get my hands on at that time of night: salt and baking soda. First I removed all of the Zilactin and rinsed my mouth with warm salt water. Then, I made a paste with baking soda and a few drops of water and placed it on the canker and let it sit for about a mintue. Then I rinsed my mouth with plain warm water. I also took 2 tylenol to help get back to sleep. I still had some pain when trying to get back to sleep, but just woke up completely pain free!! I can swallow without pain and actually enjoyed my breakfast! I can't believe it! I plan to put another "paste" on today just to make sure, but will attest that this remedy really works!

Dry Sage Leaves
Posted by Tim (Georgia) on 06/05/2018 22 posts
5 out of 5 stars

Dry Sage leaves are also great for canker sores. It's a cheapest way to get rid of cancer sore and related bb. Just chew a pinch of dry Sage leaves all day long. Place this mass on canker sore for an hour. Can swallow it easily without any side effect. Just avoid scratches - chew only leaves. You'll get rid of canker sore just in a day/or 2-3 days in severe and multiple cases. Also wash your brushes with soap everyday especially they stay as a bouquet in glass in your families.

Posted by Megan (White Plains) on 06/03/2018
5 out of 5 stars

I get mouth ulcers but years ago someone told me to try colostrum. Now whenever I feel one coming on, I take a capsule and it usually disappears.

Baking Soda
Posted by Redeemed 2004 (Nashville, Tn) on 04/13/2018
5 out of 5 stars

Since childhood I have suffered from mouth ulcers. Usually rinsing with H2O2 works by rinsing several times a day and before going to bed. The next day the ulcer is nearly gone or completely gone. But not this time! Sometimes when my seasonal allergies kick in I get a patch of ulcers. This spring has been the worst ever. Ulcers popped up on the left side of my mouth on the cheeks, gums and under the tongue. So painful and the H2O2 was not working at all. So I came back to this site where I have learned so much over the years -- thanks to all the contributors! Decided to attack the ulcers by taking Echinacea, Lysine 2000-3000 mgs per day on an empty stomach and applying baking soda to all the areas. The first day I got immediate relief from the pain and inflammation on the left side. Kept applying baking soda all day. Slept better that night. Next day the left side was on the way to being healed BUT new ulcers emerged under the tongue and along the gums on the bottom row of teeth as if they were marching to the uninfected right side of my mouth. Yikes! Continued the above protocol plus brushed my teeth with baking soda and continued to place a half teaspoon under the tongue and between my bottom lip and lower gum. Good news. The new ulcers begin to recede with each application of baking soda. Thanks Earth Clinic -- God bless you all!

Posted by Soloflex (Long Beach, Ca) on 03/29/2018
5 out of 5 stars

The best for canker sores is Lugol's Iodine 5%. Take 5 drops in the morning on empty stomach for about 2-3 weeks, they will never come back.