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Canker Sores
Natural Cures

Cure Canker Sores with Inexpensive Home Remedies

Last Modified on Nov 23, 2015

Green Tea
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Posted by Steve (Milwaukee, Wisconsin) on 04/01/2007

[YEA]  For ALL of my adult life, I've been plagued by horrible outbreaks of canker sores, typically 2-3 very large sores at any given time. Six months ago I began drinking green tea daily as a substitute for soda. To my amazement, my canker sores disappeared and did not return. Green tea was the only dietary change I made (I still drink soda, just not as much). In addition, occasionally I will not have green tea for about a week, and soon enough the canker sores return.

I am not the type of person who really believes in folk or herbal remedies, but after discovering accidentally that green tea elminated my chronic canker sores, I am a believer in at least the health properties of green tea. I really cannot express what an improvement in quality of life this is for me and likely other chronic canker sore sufferers, so spread the word!

Posted by Mike (Gainesville, FL) on 07/16/2006

[YEA]  I noticed my relatively new habit of drinking green tea is drastically affecting the frequency at which canker sores appear in my mouth. They now seem to form only in the upper part of my mouth. Swishing tea on the sore greatly reduces the time it takes (24-36 hours) for it to heal. It's amazing to find this out after years of dealing with them.

Heartburn Remedies
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Posted by Ron (Mexico City, Mexico) on 10/06/2011

I have been taking heartburn pills to lower my acid level because my doctor said canker sores are from too much acid. It works like a charm!

Herbal Toothpaste
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Posted by Sanath (Calicut, Kerala India) on 09/03/2009

[YEA]  Mouth ulcer cure. Hi.. this worked for me.. Hope it helps others...

Have been suffering from mouth ulcers since child hood.. Am 35 now. Tried hundreds of experiements with various medicines, natural remedies. Some of them worked the first time but no more, while others didn't help at all.

Finally, It was by coincidence that I started using "Herbal Toothpastes" instead of the regular toothpastes. I noticed that instances of mouth ulcers reduced dramatically. It's been about two years since, i have had major bouts of this. Only recently when I had to use the regular toothpaste out of necessity ( iwas on vacation and I forgot my own)did i find a relapse of the ulcers. Shifting imemdiately to the herbal one relieved me (within a matter of 4 days) again this time. It was then I realized for sure that use of regular toothpaste was what was causing these ulcers. Really don't know what ingredient in the regular ones was causing the ulcers..

Anyways, Its worth a try for all you guys out there who are suffereing from recurring ulcers.

Replied by Debra
Tulare, Ca
Can you tell me the ingredients in the Herbal Toothpaste?

Hydrogen Peroxide
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Posted by Will (Portland, OR) on 12/29/2008

[YEA]  I discovered to use on canker sores Hydrogen Peroxide on my own a few years back. I used it 30 sec per day, everyday, and now I have had one, maybe two canker sores since then. I think the Hydrogen Peroxide interrupts the life cycle of the virus by destroying the infected cells. That was back in 2001!

Replied by Gean
Salina, KS
Good to know. Also, I wanted to add that 2 weeks ago my brother had canker sores in the back of his throat which hurt so bad that a sip of water felt like a knife. He sucked on licorice lozenges from the health food store, and within one to two days the sores were gone.
Replied by Randomhelpguy
[YEA]   Take an ice cube with frost still on it over the canker sore and it will rip off the white part, and numb it at the same time. Then take hydrogen peroxide and hold it on the sore mixed with Apple Cider vinegar for up a minute or two. This will sting like a bitch. After all this take a Q tip and activated charcoal and scrape the crater from the former sore. Then take just the charcoal and make a paste and leave it for a few minutes. Problem solved overnight or at least smaller. Or alternatively you could use alum which also burns like hell.

Posted by Lee (Salem, NH) on 03/17/2007

[YEA]  I have always used hydrogen peroxide for skin infections, insect bites, cankers, cold sores & deleting blood stains. Results are quick & inexpensive. I dab it on my finger, straight from the bottle, to apply to a cold sore or canker. I have never had a cold sore for more than a day. When I was a teenager, I also applied some to any pimples that might crop up.

Posted by Jessie (Vernon Hills, IL) on 07/19/2006

[YEA]  I tried remedy #5 for canker sores. I'm so happy I was able to eat my lunch today without (too much) pain.

Posted by Anonymous on 06/27/2006

[YEA]  Take one capful of H202 and hold in your mouth for 10 minutes daily, then spit it out. No more canker sores and your teeth will be whiter without expensive pastes.

Posted by Pranshu (Newark, DE) on 02/03/2006

[YEA]  Hydrogen Peroxide def works for canker doctor prescribed some mouthwash that just numbed it for a few hours..but peroxide reduces the pain and it also helps cure canker sores

Posted by Skip (Livingston, MT) on 01/06/2006

[YEA]  For canker sores, either dab hydrogen peroxide directly on the canker sore until it stops bubbling, or hold and swish 2-3 tbs hydrogen peroxide in your mouth for 30-60 seconds. Spit out and repeat 2-3 times. DO NOT SWALLOW. Rinse your mouth well with water after using the peroxide in either method. The canker sore/s will be noticeably improved and much less painful within 24 hours. They should disappear altogether within 48-72 hours.

Posted by Amanda (McKinney, TC) on 11/18/2005

[YEA]  hydrogen peroxide, swish it around in your mouth or dip a q-tip in it and place it on the canker will be gone in a few days!!

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Posted by Mary (Philadelphia, Pa) on 12/23/2010

[YEA]  Thank you!!!! This afternoon a canker sore became incredibly painful. Tried salt water. Tried lisine. Came here and tried Apple Cider Vinegar. All either did nothing or made it hurt more. Kept reading here and saw all the good aspirin reports. Didn't have aspirin so I used ibuprofen instead. Oh my goodness, it's now numb. No pain at all. Even if it doesn't last, a bit of relief is a godsend!

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Posted by Aisling (Galway, Ireland ) on 08/18/2015

[YEA]  Lysine, an amino acid, is brilliant to alleviate mouth ulcers, just use recommend dose on pack, usually about 2 X 1000 mg tablets. You can use them continuously to help prevent ulcers if you are prone, or else just when you get an ulcer. I've tried everything, including soluble steroids but listen works brilliantly. Within two days the ulcer will have virtually gone. Corsodyl mouthwash is also quite good for bringing instant relief.

Posted by Jmcclain (Little Rock, Ar) on 03/11/2014

[YEA]  I remembered the recommendation for Lysine for canker sores-- after I had a full-blown painful one. I did not want to wait however long it takes for the Lysine to work in my system, so I simply held a Lysine tablet on the sore for as long as I could (about 3 minutes). It immediately stopped stinging and began to heal. A few hours later, I did it again (motivated to hold it longer) and I am pain free now. It still looks terrible but does not hurt. I never dreamed it would work so quickly.

Posted by Mary G. (Santa Cruz, California, Usa) on 03/25/2012

[YEA]  About 8 years ago my daughter (then in her early 20's and my husband both were plagued with canker sores. A co-worker of mine at the time suggested L lysine, 500 mg tablets. It totally cleared up the canker sores and they didn't need to keep taking it after the sores were gone. They both keep a supply handy to take at the first sign of a recurrence.