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How to Get Rid of Canker Sores
Getting Rid of Canker Sores
1. Wait
Canker sores will normally go away by themselves in 7-10 days. The pain can be minimized through careful diet (eliminate spicy, acidic, or other foods that irritate them) or by the use of over the counter anesthetics.
2. Some Tried and True Folk Remedies
- Acidophilus taken in either capsule form or as an ingredient in plain yogurt may stimulate the immune system. Taking 2-4 capsules four times a day with milk has proven to both reduce the pain, and speed up the healing process.
- Aloe juice can be used as a mouth rinse several times a day.
- Alum from the spice section of your grocery store will relieve pain and speed healing, but will burn like crazy for a few minutes once it is applied. Do this once or twice a day, but be prepared for the burning, and rinse your mouth out well afterwards.
- Antacid formulas such as Mylanta and Milk of Magnesia have been reported to relieve pain and speed healing.
- Baking soda is a time honored remedy that can be used in powder form, or made into a paste and applied directly to the sore. This is another one that might sting a bit at first, but repeated treatments are reported to clear up canker sores in a couple of days.
- Copper sulfate, also called bluestone, is a remedy that was used as far back as two hundred years ago. It is hard to find, but should clear the sore in a day or two. Consult your doctor before trying this.
- Keep clean: Brush your teeth and rinse your mouth with antibacterial mouthwash often.
- Stay away from salty and acidic foods.
- For pain you can use any over-the-counter oral antiseptic gel or spray.
- Using a hydrogen peroxide mouthwash can help clean out the canker sore and kill bacteria.
- Rinse your mouth with salt water a.k.a. saline
- Drink sage tea taking time to swish it around in your mouth with every sip.
- Rinse with vinegar mixed with a spoonful of salt three times a day.
- A baking soda / water paste applied directly to the canker sores can help speed healing.
- Try switching to another brand of toothpaste.
- Clove oil applied directly to the canker sore will numb it.
- Please share any more canker sore remedies you may know of using the form at the bottom of the page.
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A wide variety of other folk remedies exist. They include hydrogen peroxide, raw onion, plum juice used as a mouth wash, chewing on papaya leafs and pressing a tea bag on the sore. The best approach may be to try them all, and find the one that works best for you.
There are also quite a few herbal remedies available. Some like Burdock and Lady’s mantle are made into a tea and you just drink them. Others like Goldenseal are made into mouth rinses or pastes and applied directly to the sore. In addition, there are several over the counter products that are designed for use with canker sores, but these typically only treat the pain associated with the sores, and are not meant to rid your mouth of the canker sores.
3. Don’t Wait.
Understanding that a canker sore is an ongoing process that runs its course inside your mouth suggests that the quicker you attack the process, the quicker you can reverse it and begin the healing. Even the use of a regular antiseptic mouth wash right from the onset of the sore can stop it in it’s tracks. The idea is to not wait until the canker sore is at full size with maximum pain before you begin treatment. Mouth examinations are a good idea if canker sores are an ongoing problem. As soon as you think one is starting begin your treatment of choice.
4. Prevent Them Any Way You Can

Understanding a bit about the cause of canker sores can help. If you have a problem with them, anything you can do that helps your immune system is going to help the canker sore problem. Vitamin intake, proper rest, stress reduction exercise and good diet can all help. Avoid foods that may produce mouth trauma. Some even suggest potato chips should be avoided by children who have problems with canker sores. Most people who have chronic canker sore problems report the use of SLS free toothpaste to be the single best preventive measure they have found. They also recommend frequent mouth washing and frequent changing of toothbrushes. The real idea is that anything that makes the mouth cleaner and eliminates bacteria is going to help.
Offsite resources
Mouth Ulcers at Wikipedia
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the best product for treating kanker sores that i have found is called ‘KANKA’. it comes in a tiny bottle with an applicator. it cleans, numbs, and coats the sore to help it heal. it tastes awful, but it goes away pretty quickly. the coating can also be sticky, but it lasts for a few hours. my medicine cabinet is never without it.
What i used for my canker sources is a mixture of mouth washes and salt water
what i used exactly was salf water then put some act tarder production
and some act kids anti cavity
I have two methods that I use:
#1 From above I have seen that many people take the amino acid L-Lysine to prevent; however, once you get one take 3000mg the first day followed by 1000mg every following day until the canker sore has healed. I have been doing this every since I was a child. It works.
#2 There are several mouthwashs you can use (homemade or purchased). I have found that Biotene mouthwash helps heal canker sores very rapidly. The mouthwash is advertised to help sufferers of dry mouth; however, it also help restore the pH balance in the mouth as well as restoring essential enzymes.
I hope this helps.
The best thing I have found is take a hand full of grass, yes grass from your yard, and blend it in a blender with a small amount of water. Dab a finger covered in salt on your sore repeatedly, letting the salt dissolve on it. Then use the grass mixture to rinse your mouth. I know this sounds weird but it works. I learned it in my college animal science class. Ever wonder why animals often try to eat a few blades of grass on their daily bathroom breaks? This is because the grass helps in maintaining a clean, healthy mouth and a well functioning immune system. It works, gone within a day and no more pain after 15 minutes of rinsing.
Take a vitamin C tablet. A lot of the time these sores are caused by not having enough vitamin C. Since orange juice stings on the sore, the tablet will help rather fast.
I LOVE pineapple and when I went to Hawaii, I wanted to eat all the pineapple I wanted but I was worried about getting canker sores as they run in my family. I asked my doctor and he said take L-Lysine for a week to two weeks before you go and continue taking it while on the trip and you will reduce the chance of getting canker sores. I did this and it worked. Now when I get canker sores I wt the tip of my finger with water, open an L-Lysine capsule and put some of the powder on the tip of my finger and rub it into the sore, I do this over and over until the contents of the capsule is gone. I don’t rinse, I just leave the residue of the L-Lysine in my mouth until it has washed away from saliva. It seems to work for me!
I Get canker sores around 1-5 times a month so I have to deal with them regurley.
Also there is no “cure” But this helps take away ain anyway and you probably wont have to deal with them as often though they will still pay occasional visits ( currently I have 10 cankersors 8 down my throatand 2 in my left cheek. But since I am doing this it has stopped the pain. And before you say It probably is a fake since she still gets tons of them well it’s not I still have them because they run in my family.
tip #1- Avoid acid! this stuff is in tomatoes, oranges and etc..
tip #2- If possible try and take a day off from work/school this will get you away from stress allowing it to heal quicker.
tip #3- Change your toothpaste and buy one that dosn’t have SLS in it.
tip #4- try swishing baking soda with water (you’ll need about one table spoon of baking soda for an 8 OZ glass.) in your mouth it will taste DISGUSTING but belive me it helps.
tip #5- If you get them down your throat like I do swallowing is gonna be a huge problem. Make sure if you have them down your throat (or anywhere) you eat alot of ice cream and try to eat mainly soft food such as:
Bannanas, ice cream, pasta, and soups of any kind besides tomatoe.
Also drink lots of water and juice (NO and I repeat NO ORANGE JUICE!!!!)
tip #6- No cruncy foods if a sharp piece diggs into your canker sore it will take much longer to heal and it will be three as painful!
Hope this helps good luch
Nicole Canker Sore Queen
cankers it seems are a direct result of ,iron in our body ,can foods?and electricy,with denal work,filling ect ect.they increase,too much showering,removing the insulating oil,away.ph comes into play allso.so with a little common sence i,amm canker free with out drugs and no big change to my life style,just that i drink my beer from glass bottles now lol.but really it is changed greatly with a change in ph in your body will change electricy charged cells,catnodes to antodes [not sure of the spelling]i know iam close and it works,stop becoming a battery[alk. or acid type ?
Stay away from tomatoes and any thing else that has a lot of acid in it….
Zilactin helps a lot. It’s like a bandaid for the inside of your mouth. It numbs the area while covering it and allowing it to heal.
eating cheese gets rid of canker sores. When I was younger, this is what my grandmother always told me to do and it worked.
Try TCP and dab it on the ulcer 3 times a day…it kinda burns, but it workd!!
I just got a canker sore yesterday when i bit my lip really hard.
I applied grains of salt followed by hydrogen-peroxide followed by rubbing alcohol.
I’ve done this 3 times already and it has basically healed completely
swishing your mouth with peroxide helps get the puss out
kank aid numbs your mouth & you cant feel anything at all!
I love to chew gum, but I always end up biting my tongue. I bit it in 3 different places and it hurts like hell. I can barely even enjoy my food because it hurts to chew. I guess just cleaning it out with mouthwash or hydrogen peroxide speeds it up.
Ibuprophen and Benadryl are two causes of mouth ulcers for me.
To treat, I use Gly-Oxide, an oral antiseptic and cleaner.
This is my first time with canker sores and boy are they painful. they are all under my tongue and follow all the way around the edge of it.
about 10 to 12 of them. i went and talked to the pharmist at our local walmart and this is what she told me to take the vitamin L-Lysine 2 times a day and to make a mouth wash in equal parts of childrens benadryl mixed with milk of magnesia. sqish it around for a minute and spit it out. it is a awesome mouth wash!!!it numbs your mouth and i already am feeling a little better the next day. my speech is back to normal because the swelling is down some. Good luck to anyone suffering these horrible sores. i know how painful they are!!!!!
Just use mentadent toothpaste, it helps prevent them, but you always have to use it
Man! I have one right now as i type. And boy do I want to get rid of it soooooo bad, The thing that always works for me is that i take a Q-tip and dip it in baking powder with lemon and got to tell you it hurts sooooo bad but it’s worth it, anyways I take the Q-tip dipped in baking powder and lemon and i scrub it till it bleeds and takes off all the white stuff, so that helps kill any bacteria that causes these son of a b- well you know. It will be as good as gone!☺
Pure vanilla extract, the alcohol dries it right up!