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Canker Sores
Natural Cures

Cure Canker Sores with Inexpensive Home Remedies

Last Modified on Apr 26, 2016

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Baking Soda  

5 star (12) 
1 star (1) 

Posted by Elli (Billings, Montana) on 12/14/2008
5 out of 5 stars

Had tried many of the suggestions here, so I was an 'experienced' patient. But this last episode was getting agonizing, allergies caused me to bite my tongue 3 wks ago. Had been to the clinic and got a little relief. Called Primary Care Physician and got a little more relief several days ago. Today .. Nothing had really helped and pain was getting worse. FOUND THIS SITE. Had not heard of the alum/baking soda cure and since I was in no shape to go pick up some alum, used my handy large size of baking soda to try that out. Did it once .. Seemed to help a bit. Waited a little while, rinsed with salt water (which I had been doing from the beginning) and applied more baking soda. This time it Burned - but not for too long. Now my throat is sooo much better. I can swallow again and the pain is not radiating down my neck past the lymph nodes - one morning I was awakened dreaming I had the mumps again. I know that the yogurt works. I had gone so far as to make it myself when my kids were little - it was not as readily available as it is today. I was just too far run down this time for any of my usual remedies to kick in. Thank you for this site. It was just what I had hoped to find when I started looking days ago!!

Posted by Jennifer (Gilbert, AZ) on 11/17/2008
5 out of 5 stars

I have these last couple of months been getting canker sores. I have never had them in my life, but have just started getting them out of the blue. I found this website and i have tried everything on here, all but the baking soda i tried that last. Let me say NONE of the other things worked for me, but oh my gosh the baking soda works wonders!!!!

The pain was very VERY bad and i didn't know what else to do, i even tried over the counter things and they didn't work in anyway, but the baking soda did.I also found the baking soda helps if you have a toothache too, in short baking soda is amazing and i would try it before anything else.

Replied by Shaunmayfield
Gilbert, Az
Hey there Jennifer, both of us seem to be from Gilbert, crazy. Let me ask you, how did you apply the Baking Soda? Powder form directly to sore or rinse/gargle?

Posted by Tania (Mercier, Quebec, Canada) on 03/10/2008
5 out of 5 stars

Baking soda cured my canker sore within 24 hours. I had major pain on the side of my tongue to find a canker sore it was so sore I couldn't hardly swallow. I took 1tsp of baking soda and 1 tsp of water and kept it in my mouth as long as possible. I did this 3 times within an hour went to bed and did the same the next morning by dinner time the canker sore was gone! Thank you for this site its a great help.

Posted by Shawna (Eugene, oregon) on 01/25/2008
5 out of 5 stars

Out of the blue 4 days ago I got a canker sore that was 1.5 inches large on the side of my tongue. It was excruciating! Last night before bed I tried putting a baking soda paste on it and I woke up this morning and it's almost gone! I am so glad I found this website!!!

Posted by Heather (Boston, MA) on 11/15/2007
5 out of 5 stars

Thank Goodness I found this page. I started with two small canker sores a week after my flu shot. I hardly ever have a canker. So, I used Ambesol Max Strength. It burned, numbed, but things got much worse today. Almost two inch long canker on the side edge of my tongue. And three more scattered on my inner front and side lips. I rinsed with the pure apple cidar vineger. It didn't releave the pain. So I tried the baking soda paste. The paste started to tone down the pain. I was at a 10 most of the day. After the baking soda treatment, I am currently down to a 4. maybe less.ahhhhhh

Posted by Heather (Van Nuys, CA) on 11/14/2007
5 out of 5 stars

I ran a quick search over the weekend on treatments for chronic canker sores on behalf of my boyfriend who has suffered these painful occurrences since childhood. I came across this site and he decided to try the baking soda paste. It stung at first, but it helped him heal within five days and he's so happy to have found this treatment. Thanks.

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!

Posted by Hayley (Rochester, NY) on 08/09/2007
5 out of 5 stars

I get canker sores often and they cause me alot of pain when I eat or talk. I heard that baking soda can help. I started using baking soda and it takes the pain out for hours at a time. First I mix it with water to make a paste, and apply it to the sore, hold it on for a straigt minute. (yes, it stings and will bring tears to your eyes) then swish with water and spit it out. I can go to work for 6 hours and have no pain. Rinsing mouth out with a teaspon of baking soda in a glass of water periodically during the day helps too.

Posted by John (Harfod, WI) on 12/01/2006
5 out of 5 stars

Whenever I get a canker sore, I pack some baking soda on it. If it does not go away in an hour or two, I re-apply it when I notice the sore still there. Some times it takes a few more aps.Usually, gone the same day. Sometimes, i'll pack the soda on right before bed. no canker in the morning. It works every time for me. A final note: It does sting for about a minute when applied. The stinging stops, even though the baking soda is still packed on the sore. Good luck, hope it works for you too.

Replied by Asw
Houston, Tx
5 out of 5 stars

Using baking soda worked for me. I had a canker sore that kept getting worst despite the fact I was applying hydrogen peroxide. So I looked online and saw that baking soda also worked as a treatment for some. I applied baking soda once or twice a day for three days and it completely healed the sore.

Baking Soda and Salt  

5 star (1) 

Posted by Yolanda (Atlanta, Georgia) on 08/10/2008
5 out of 5 stars

Salt and Baking Soda cured my canker sore in mouth in three days! I had never had one before. I came here and saw the many remedies. I first tried the aspirin and actually it irritated the sore and the surrounding tissue in my mouth. I read about salt and baking soda. I started Wednesday night rinsing my mouth with the warm to borderline hot salt water (about a tablespoon of salt with about 6 oz of water) this will burn/painful at first. I swished around in mouth until all was gone. When I woke up I saw that the epithelial tissue almost like a scalb had formed over the sore in my mouth. Though still painfull, I repeated the same thing accept this time I used baking soda. Same amount as I used with the salt. I used baking soda twice and salt once during the course of the day. About every 3 1/2 hours. The soreness begin to go away.I repeated same thing on Friday. By Sat afternoon the soft tissue scalb was completed detached from sore and the sore was healed! Amazing!


5 star (1) 

Posted by Zark (Australia) on 09/02/2014
5 out of 5 stars

BHT is what worked for me. I tried the usual antibacterial modes (iodine, salt, baking soda) and nothing would help one little bit. Any time my mouth had a little scratch it would inevitably result in a mouth ulcer that would take weeks to heal (you guys call them 'canker sores').

I eventually tried BHT thinking it might help some other immune problems (I have an inflammatory autoimmune disease). Well, only one thing changed noticeably - no more mouth ulcers. Ever since trying BHT I have been clear of this issue, and it has been a stark change. Now if I bite my lip there is no problem, yet before I would be absolutely guaranteed to have a very nasty canker sore.

Now I can't guarantee this will help anyone else, I never expected that my mouth ulcers could be caused by a virus!! (ehh sorry I mean 'canker sores) But there you go.. learned something new. I suspect the majority of folk are still caused by bacteria, but hey if iodine, ACV, baking soda and salt don't help then maybe you should try this!

You can read more about BHT here:

Most important - make sure it is food grade.

Black Tea  

5 star (1) 

Posted by David (New York, Ny) on 10/18/2011
5 out of 5 stars

Tannin is a good remedy for canker sores, it's found in black tea. If you put a black tea bag on your tongue and let it sit for like 5 min or so you take it off and the pain is nearly all gone and the effect stays for quite awhile.

Blackstrap Molasses  

5 star (1) 

Posted by Celia (Toronto, Ontario Canada) on 09/09/2006
5 out of 5 stars

I'm a dental hygiene student, and one of my instructors told me to try putting black strap molasses directly on my canker sores (i get them all the time! grrr!). I tried it last night and today they're nearly gone! it's a miracle cure, and I can't believe how well it worked! You've gotta try it!


5 star (1) 

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.

Replied by Sharon
Wisconsin, US
Just stumbled across this posting and am SO GLAD I did. I have a question tho. Did you swish the borax around in your mouth, or is this something you swallowed?

Camphor, Honey  

Posted by Jan (Ft Lauderdale, Fl) on 04/08/2015

For canker sores, I use spirit of camphor dabbed on a q-tip and placed on the sore. It heals within a few days and takes away the pain. Also organic raw honey placed on the sore, and it is gone the next day or two.