Canker sores - what causes them and how do you stop getting them?

I’ve had mouth ulcers for the last 3 year’s constantly, tried every thing going been to doctors and dentist blood tests done all the time , mouth wash steroid wash all sorts ,nothing has helped don’t know what’s wrong with me

I have found through the years that probiotics are hugely helpful. In fact, I haven’t had any in years because as soon as I would get the feeling one was coming, I’d immediately get on probiotics, allowing them to melt in my mouth. This would stop the development of the mouth ulcer. I have shared this with many people and it has helped them as well.

The cause of canker sores is unknown yet there are many factors related to why you could possibly get them. The solutions to remove canker sores include swishing and rinsing your mouth 2-3 times a day with warm salt water or half hydrogen peroxide and half water. These options can help reduce the pain associated with canker sores and offer healing benefits as well. If your canker sore continues, you should talk with your dentist.

i have had mouth ulcers for months now
i think it is due to the medication i have restarted since over a year ago (lyrica) and (synthroid) since March this year
i have been back & forth with the immune dr and my system is fine
i stopped the lyrica and the mouth ulcers still show up but not as severe as they were (just placed a call to the neurologist) about my meds but if you look up the meds i mention they say they are know to cause ulcers in the mouth (dry mouth)
also stop and read to see if SLS is in your toothpaste - do not use listerine
the ent dr. (nose,ears,throat) doctor told me no good for mouth / ulcers
i use perioxide & warm salt water to gargle and buy special mouthwash (CLOSYS) & toothpaste at the drugstore with no SLS in it (sodium lauryl sulfate) NO ALCOHOL you can also get a q-tip and place perioxide onto the sore to help it heal quicker (Good Luck!) I know they hurt.

I tend to get the herpes simplex type of cold sores on my mouth and lips and can get them all winter long. Now as soon as I see one starting I take L-Lysine - an amino acid supplement. I usually stay on it all winter then stop for the summer until I see a sore forming again the next winter. Then I start taking it again. It works really well for me. Hope you find your answer -

Hi not perfect. Are you sure they are canker sores in your mouth???
Your body is going through a lot of stress right now. So, therefore, you are having some other effects due directly to the stress, namely your mouth. So your sores have vesicles (fluid filled blistery looking) like "cold sores?" or is their some raised areas in your mouth that are tender? There could be a variety of things going on from fever blisters (cold sores or herpes simplex) to lichen plantus, a condition of the mouth where your own body reacts upon itself. I would discuss with your doctor. Also, dentists and oral surgeons are diagnosticians in matters of the mouth.
The oral rinse that Dzoobaby recommended is good. Another oral rinse that must b ordered by prescription is a dexamethasone swish--- 0.5mg per 5 mls. It has the steroid in it--- dexamethasone and it works very well.
I hope you feel better my dear and I hope this helps...

There is a mouth rinse available over the counter, called Biotene, it was developed to heal the canker sores caused by chemo, it has NO sodium lauryl sulfate, and No alcohol, it mimics the natural enzymes and it good about healing mouth irritations. They have a toothpaste too. They are each about $6 to $9 at any drugstore, both are called Biotene.