Colloidal Silver
I have been suffering from mouth sores for decades. I read that colloidal silver will penetrate tissue. So, gaving tried everything, i tried 250 ppm. Everytime i got a mouth sore starting, i gargled (then spat out - did not swallow) for 3 minutes like the article suggested. The mouth sore would go away in 24-48 hours. After a while, i stopped getting mouth sores.
Colostrum

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.
Comfrey Tea

My midwife suggested this after a tooth extraction.
Us Irish have different blood/body chemistry. Many of us are allergic/sensitive to foods high in vitamin C, like tomatoes and oranges. These things CAUSE canker sores for us, believe it or not. I have a lot of irish blood, and I recently got my tooth pulled. I have stitches in my mouth, and here is what works for relieving the pain:
fresh comfrey tea leaves put in a small tea bag, put tea bag in warm water (about 1/4 cup) until a tea forms. Rub the tea bag until the outside kind of feels slippery or oily, similar to aloe vera. Hold the tea bag over the sore.
Hold until pain subsides, or bite down on bag instead of gauze as dentist suggests after extraction. Research Comfrey Root and leaves for more information on uses.
Also drink Throat Coat tea (gypsy cold cure in your grocery store aisle) with black licorice in it for swelling, and rinse mouth with Tom's baking soda and witch hazel mouthwash to keep wounds bacteria free. Follow with a tepid salt water gargle and gentle spit.
This is a good "Ora-gel" for very sensitive skin/people. It won't work for people who have a high tolerence to over the counter drugs. Less Sensitive individuals would need aloe mixed with Ora-gel, and to go the gargle with Green Tea/Orange Juice route.
Constipation
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.
(Houston, Texas)
10/31/2012
Interesting! I was wondering why I had a painfull canker sore appear under my tounge and after reading your post, it dawned on me that as a result of taking pain medication, I have been constipated for about two weeks now. I am going to rinse with baking soda and drink some baking soda as well. I have always had success drinking baking soda to relieve constapation.
(Fort Worth, Texas)
11/27/2012
Wow that's crazy, everytime I can ever think of the canker sores I got and currently have is all when I was not on a regular bathroom schedule. Vacation- canker sores appear, too busy... Canker sores appear. You're on to something, because the last 4 times would if this is true, all be for the lack of regular bowel movements!
Cough Drops

I use Ludens Honey Licorice throat drops to alleviate canker sore pain. Also use Squirt soda in the can, to take the stinging away. After 20 years of experiments, the two above have worked the best for me, without going to the doctor.
Distilled White Vinegar

I had an annoying and painful canker sore way back on my tongue, too much info..., but searched and found this site, only had distilled white vinegar, gargled twice for one minute twice and the sore really calmed down in 5 minutes, (stinging of course) then the next day gone. Assume apple cider vinegar is effective as well, but have used alum, peroxide, warm salt solution, ambesol and other OTC meds, the vinegar is the best.
Dry Sage Leaves

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.
Eliminate Milk to Eliminate Canker Sores

For most of my life I was a regular (and during my younger years) heavy drinker of cow's milk. I suffered from horrible canker sores (3-4 at a time, each a half inch or longer) my whole life, right up until approximately 6 years ago when I eliminated milk from my diet. For me, it seems to only be related to the liquid form: I don't seem to have problems with cheese or even ice cream. However, a couple of times I've tried introducing milk again by having it on my cereal in the morning -- after about three days, I got a canker sore. Upon again stopping ingestion of milk -- no more canker sores. I was diagnosed when younger with an allergy to milk, and I wonder if this is related. I'm convinced science will catch up with this theory eventually and it will be shown that canker sores are closely related to allergies. Anyways, if you suffer from canker sores, try eliminating milk from your diet for 30 days and see what happens; I bet you'll be glad you did!
Eliminating Allergy Foods

hi, my son is 17 and has been suffering with cankersores since he's been 3yrs old.
He gets them weekly up to 10 in his mouth. Went to every singal doctor/department known to man. Ended up in Rheumatology department only to be put on drugs that were for cancer!!! I was so done with this. Finally I took him to a holistic doctor who did a food intolerance panel. (not allergy) and it came up that he was intolerant to milk, cheese, and eggs. As soon as we eliminated those foods, he is cankersore free-----except of course when he wants pizza with cheese and ends up with sores 2 days later:)
Epsom Salt

Epsom salt solution - a teaspoon in water rinse mouth in it several times a day till gone. Rinse and spit, do not swallow -- laxative effect.
Fenugreek

Fenugreek's leafy form belongs to the spinach family. However, its seeds are useful when cooking to combat the flatulence caused by certain foods, such as lentils and cauliflower. Its anti-viral properties mean it also helps against sore throat and mouth ulcers. Historically, fenugreek has been used to treat diabetes and is now thought to reduce blood pressure
Flax Seed Oil

I was having chronic canker sores, usually 3 at a time. I tried everything I'd ever heard of with little success. I started taking Omega 3 in the form of flax seed oil for general health reasons. Within a week or so my sores were gone and I haven't had one since. I alternate between flax oil capsules (6 a day), ground flax seeds (2 tablespoons) and eating about 1/4 cup of walnuts.
(New York, NY)
06/30/2008

Folic Acid

Folic Acid doesn't work for canker sores. Makes them sorer.
Folic Acid

Take folic acid. Mouth sores go away very quickly! It's fantastic!
Garlic

I had a canker sore in mouth right where my gums and cheek meet. I chewed one garlic clove in the morning and once at night and within three days it was non-existent.