OTC mouthwash for canker sores?

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Veteran Member

Date Joined Apr 2005
Total Posts : 3763
   Posted 1/4/2010 6:17 AM (GMT -7)   
For the past few months I have been getting a sore mouth. Areas of my mouth will feel like I am going to get several canker sores at one time. It will feel like that for a day, then be fine for a few days, then the cycle will start all over again. These areas don't really develop into full blown canker sores that I can put OTC medicine on. I haven't changed any medications or my diet, so I don't know why it is happening. Since we are prone to these type of sores I thought I would ask the experts. Anyone with any ideas as to a simple prevention or treatment?

CD 20 years officially, 30 unofficially. 3 resections '93, '95 '97
Managing with strict low residue diet, keeping symptoms to a minimum. All test show small amount of ulceration, still have occasional blockages. But still have a great time with my 2 daughters and husband!

Prednisone, 6MP,Prevacid, B12 shots, Bentyl, Xifaxan.....

Regular Member

Date Joined Mar 2008
Total Posts : 382
   Posted 1/4/2010 8:39 AM (GMT -7)   
Don't know the answer but had the same thing happen a few weeks ago. Happens once in awhile but never amounts to too much.
57 yr. old F dx. CD 07/07
Was on prednisone for three months but no medication for next 11 months.
Started weekly methotrexate injections 09/22/08.
Lap assisted sigmoidoscopy done May 11/2009

Veteran Member

Date Joined Nov 2007
Total Posts : 4363
   Posted 1/4/2010 2:23 PM (GMT -7)   
I've heard that if you swish with a combo of liquid benadryl and Maalox it is supposed to help, but I haven't tried it.
51 yr. old female, diagnosed with Crohn's in small intestine and terminal ileum Sept-Oct. 2007. Also have IBS, and had Salmonella Dec. '07
currently taking Pentasa- 4 500mg pills per day, Metamucil and colace for constipation, probiotics

Veteran Member

Date Joined Oct 2004
Total Posts : 2088
   Posted 1/5/2010 8:05 AM (GMT -7)   
yeah Lots of old posts about this, that I recall in the distant past. Zinc gluconate works for me - zinc lozenges in general seemed to be popular if I remember correctly - Bonjela mouth ulcer jelly - and there was another one I can't remember, I think it had lignocaine in it which of course was good pain relief.
There is a theory that says mouth ulcers are a sign on vitamin B deficiency - which one I am not sure, probably B1 or B2 - and that it is brought on by having lots of processed sugar in the diet, which uses up the body's whole store of this vitamin.
I certainly find that my mouth ulcers suddenly come whenever I start eating lots of sugar-laced foods, and go just as rapidly when I stop eating those foods. nono But of course what is true for me will not be true for everyone ! eyes

Regular Member

Date Joined Aug 2008
Total Posts : 190
   Posted 1/9/2010 8:23 PM (GMT -7)   
I used to get these all of the time and did some research and spoke to my doctor about it. My doctor said toothbrush bristles can cause some irritation then cause it to blister (canker). On the internet there was a lot of information about toothpastes with the ingredient "sodium lauryl sulfate" can cause them. Essentially sodium lauryl sulfate is was causes toothpaste to bubble up and can cause canker sores (just google toothpaste sodium lauryl sulfate).

So I got a new toothbrush and the only kind of toothpaste I could find without sodium lauryl sulfate was sensodyne or something for sensitive teeth. So I looked at other toothpastes and picked one with sodium lauryl sulfate as far back on the ingredient list as possible. Because the higher up on the list an ingredient is, the more there is in the product (at least in the US). After a week or so the cankers started to die down. It's been about two years since I've done this and glad to say hardly any more issues.

And if you get a canker, the best thing I used to get it to stop hurting and heal up was swishing some hydrogen peroxide in my mouth for a few seconds. It doesn't really taste that bad and kind of tingles, but it worked really well.

Regular Member

Date Joined Jan 2010
Total Posts : 429
   Posted 1/9/2010 9:26 PM (GMT -7)   
When I was a kid first sick with Crohn's, I remember having a mouth full of cancre sores. I never took any medicine for them. I just sucked on ice chips all the time. Those were the only things that seemed to help me at the time.
Diagnosed with typical Crohn's at 16.
Got lucky with Asacol for a year, then even luckier with ten years of relative remission.
Now abscesses and fistulas are having an "atypical" Crohn's party around my junk.
Remicade is coming to get me soon!

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