Cure Canker Sores with Inexpensive Home Remedies

Last Modified on Sep 05, 2014


Hydrogen Peroxide   8  0   

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

[YEA]  Hydrogen Peroxide def works for canker sores...my 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 sore..it will be gone in a few days!!

Ibuprofen   1  0   

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!

L-Lysine   9  0   

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.

Posted by Mmsg (Somewhere, Europe) on 02/19/2012

[YEA]  Finally, after 5 years of constant struggle with canker sores, I hope I've found the solution, thank G-d! I had taken l-lysine on an off with varying degrees of success untill I was told to take it (with water, of course) ON AN EMPTY STOMACH, away from food. For me, that was the secret, and so far so good, not one new sore! Now I just take one capsule of 500g. once in the morning for maintenance.

Posted by Sara
Sacramento, Ca USA
02/19/2012
49 Posts
Thank you so much for sharing this valuable information with us, and I am glad your canker sore is not bothering you, anymore. My mom is 76 years old, and she is suffering from Canker Sore for 8 years now. She tired from A to Z nothing has worked out. What brand of L-Lysine did you use? You said that you took in the morning before taking breakfast. How much was the time gap between taking L-Lysine and taking breakfast? I would appreciate if you reply me, or you can send me an e-mail S_wali(at)yahoo(dot)com

You may live long and thrive!

Posted by Bill (Orem, UT) on 05/28/2008

[YEA]  I've had massive dime-sized canker sores for years and had tried just about everything by the time I had finally found this website. I tried the recommended L-Lysine tablets 2 times a day (morning and evening) and have been doing so for about 6 months now. I am happy to say I have finally found the cure for canker sores, trust me, L-Lysine works! I never get canker sores anymore.

Posted by Carol (Hamburg, NY) on 03/14/2007

[YEA]  For years, my teenage grandchildren suffered through excruciatingly painful episodes of canker sores. After trying & failing with many remedies suggested by their mother & others, including their M.D., they finally tried the old-fashioned home-remedy that their great-grandmother used! L-lysine, a simple, low cost cure. They now are tried & true users of L-lysine, and have almost become heroes with their college friends. The treatment is: Immediately upon the beginning of an out-break, take two 500 mg. tablets. Continue taking one 500 mg. tablet each day until 2 or 3 days past the day the canker sore appears to be healed. "L-lysine is an essential amino acid needed in our diet. It is found in animal protein, such as milk protein. It is recommended that young adults need approximately 23 mg of L-lysine per day per kilogram (10 mg per lb) of body weight. The proteins of cereals; wheat gluten, for example, do not provide enough L-lysine (Columbia University Press Encyclopedia)". Little do the young believe that Grandmother's could be so smart - until they try the "old- fashioned home remedies!

Posted by Maya (Ft Leavenworth) on 11/19/2005

[YEA]  My daughter and I would get canker scores often, until a friend told me about Lysine. We both take one a day, and if ever one starts to appear, then take 2 pills and the scores are gone. I told a great friend who had very dry lips and the lysine has worked for her as well! Love it! The pain is gone!

Posted by Thesa (Colorado Springs) on 11/15/2005

[YEA]  My 5 year old daughter came down with a horribly serious case of canker sores. Her mouth had several sores on her tongue, cheek, and gums. Her gums were so red and swollen you could barely see her little teeth. Her breath was absolutely terrible and she barely ate or drank a thing. Finally after a week of different attempts, we had her gargle with 6 drops of tea tree oil in 4 oz. of water three times a day, gave her half an adult dose of L-lysine crushed up into water once a day, gave her a homeopathic every hour and had her drink 16 oz. of water with acidophilus/FOS throughout the day. We kept her completely off of sugar, dairy and meat and mostly she ate cottage cheese and plain yogurt. Within one day she was so much better and finally eating and within 3 days totally better!

Posted by Lynda (Durham, NH) on 10/20/2005

[YEA]  My nurse practitioner recommended L-Lysine for my debilitating canker sores. They would last for weeks and were so bad that the pain extended to my neck and lymph nodes. I couldn't even eat without excruciating pain. When I feel a canker sore coming on, I take 1 gram 3 times a day and the sore is gone within a day or two.

Posted by Donnie (Spartanburg, SC)

[YEA]  A supplement called LYSINE helps to heal mouth sores faster, just take a 1-gram capsule 2 or 3 times a day.

Lemon Juice   1  0   

Posted by Sam (London, Uk) on 08/16/2009

[YEA]  Lemon Juice for Mouth Ulcers:

I've recently had a bit of a fight with ulcers on the back of my throat and roof of my mouth. They are so painful and yet again the doctor can describe nothing to cure them, only a paste to numb them....which in my eyes (as a singer) is not going to do me much help!! I've tried ACV and ginger with no luck, but the last time Cayenne Pepper in Hot water seemed to do the trick but this time neither could help me and they would not budge! I decided to squeeze the juice of a fresh lemon into a cup and gargle with it...BLOW ME DOWN!!!! IT STUNG LIKE HELL and my eyes watered, however I could feel them burning on the roof of my mouth....it felt like they wanted to grow legs and run out of there!!! So 24hours after the lemon juice gargle, the redness has calmed down and they are totally on the mend....next time I am going to add salt to this mixture and burn them right out!! But for now the lemon juice has worked wonders!!

Maalox and Benadryl Liquid   1  0   

Posted by Elaine (Bloomington, usa) on 02/15/2008

[YEA]  For a canker sore combine equal parts Maalox (or generic equivalent) and Benadryl liquid (or generic equivalent).Shake well and swish around mouth. Do not rinse. After eating brush teeth and repeat this.


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