Tooth Abscess
Natural Remedies

How to Use Hydrogen Peroxide for a Tooth Abscess

Jan 14, 2018

Hydrogen peroxide is an inexpensive natural remedy for a tooth abscess. Hydrogen peroxide is made up of hydrogen and oxygen. It has antiseptic and antibacterial properties. The brown bottle of 3% hydrogen peroxide from the drugstore or pharmacy is ideal for treating an abscess. Never use full strength food grade hydrogen peroxide internally or externally.

Mix 1 tablespoon of your 3% hydrogen peroxide with 1 tablespoon of water. Use this diluted solution to hold and swish in your mouth for 2 minutes. Spit the solution out and rinse your mouth. Repeat the hydrogen peroxide swish every 2 hours during the day and again if you wake up in the night feeling pain.

Let us know if you've tried hydrogen peroxide for a toothache. Continue scrolling down to learn how hydrogen peroxide worked for other Earth Clinic readers.

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Posted by Laurie A. (Raleigh, Nc) on 01/12/2018 3 posts
5 out of 5 stars

I had a painful toothache from one of my top molars, the tooth had broken in half actually, and I was in a lot of pain. But that was almost 11 months ago :) Hydrogen peroxide works!! I brushed my teeth with baking soda, rinsed. Then swished a little HP for a few minutes (let it foam), then spit it out and rinsed with a little warm water. Again, that was 11 months ago, and I have absolutely no pain in that tooth, it's still there.

Posted by Lanie (Boston) on 12/18/2017
5 out of 5 stars

I'll make this quick. Tooth abscess, not eating, not sleeping, and terrible pain. A tablespoon of Peroxide mixed with 2 tablespoons of water. Just let it sit in my mouth for about 30 seconds. Pain slowly started going away. About 10 minutes later I tasted something in my mouth. Grabbed a paper towel and there it was. Abscess blood and pus. Rinsed again and was instantly back to normal. Wow! It worked so quickly, wish I knew sooner.

Replied by Roug

hi, is the 'tablespoon of Peroxide' = 35% peroxide or 3% peroxide?


EC: 3%!!

Posted by Fancypants (Usa) on 05/27/2017
5 out of 5 stars

I used 50/50 water and hydrogen peroxide. Swished for 2 min, spat, rinsed, and repeated after about 5 min. (2 min because that's as much as I could take before it got too foamy.)

When I had a tooth infection a decade ago, a dentist gave me a prescription Hydrogen Peroxide mouthwash. I came upon this site trying to find a DIY version.

I have had a broken molar for years, but was able to keep it clean and happy with oil pulling and obsessive flossing until about 5 months ago. At that time, it started becoming very sensitive to cold and heat. This winter I couldn't open my mouth outdoors because the cold air would go right into my tooth and give me a blinding headache for hours. Eventually the gums around it became constantly swollen, tooth became painful to touch, and i'd get a massive tooth/headache every night. Advil/Tylenol did nothing. Was on antibiotics recently for something else, and that did nothing for my tooth. This past week I haven't been able to chew on that side of my mouth. I assumed this meant the broken tooth was finally dying.

This evening, in great pain, I finally tried the 50/50 peroxide water. Painful at first, but by the end of the swish it had improved about 10%. I thought that would be it, and that I'd just have to continue this regimen for a few days to see any major improvement. 2 hours later, it has improved 60%. The tooth is not painful to touch, the swelling has gone down massively, though it's still sensitive to cool air. No pus but my gums are steadily releasing something like salt water, and a tiny bit of some hard foreign substance has been ejected along with the liquid. Maybe popcorn kernel? broken piece of tooth? I might be up all night spitting out salt water, but I'm without pain for the first time in months. I'll take it!

Posted by Shanna (Brooklyn, Ny) on 03/21/2017
5 out of 5 stars

I drained my abscess with 3% hydrogen peroxide and paired it with antiseptic mouth wash and massaged the area with my thumb to push the pus up and out. I had the worst pain while doing this but I pushed through it. I was starting to get lock jaw so in order to fix this I actually killed two birds with one stone. Fast forward to two weeks ago I got my wisdom tooth pulled and a couple days later I noticed the taste in my mouth was funny, but there was that unpleasant taste of pus I couldn't mistake. So I started rinsing with peroxide and salt water until I was cleared to use mouthwash again. So far so good; the pain has somewhat gone away but the swelling in my gums is still there. I'll continue to use the peroxide until I go to my check up next week. Peroxide worked wonders.

Posted by Paul (Centralca.) on 03/03/2017
4 out of 5 stars


I have been using HP for about 2 months. Oral surgery was the recommendation. Have L. molars 20 &21., one broken at the gum line that can't be repaired. I have been staving off the tooth extraction as long as possible. I take a blood thinner so surgery is the option. Not looking forward to implants either. I have been wondering how often is safe to use HP. Someone here I think said twice a week was OK. If anyone else has a routine, I would sure like to hear. I have been doing pretty well by being careful with foods with hard surfaces. I also take a Tylenol 500 mg twice a day in case of a flare up. But haven't needed anything for pain otherwise.

Replied by Paul
Central California

I just wanted to add how grateful I am for all the help others have provided. Have been reading post from years ago and there is a lot experience available. Thanks Earth Clinic.

Replied by Paul Again
Central California.

After seeing a dentist friend about an abscess I made an appointment and he recommended an oral surgeon for two molars 19 and 20. this was 12/20/16. have been putting it off about 8 or nine months. Been getting by with 50/50 peroxide 2 or three times a week. 2 minutes each time. I take a 500miligram Tylenol about every 12 hours just to be safe. Never any pain. I also take a blood thinner. I have one other problem with Trigeminal Neuralgia that I am cautious about performing oral surgery. I plan on consultation. At any rate the peroxide I credit with getting by pretty well. Didn't mean to bore everyone.

Replied by Effy
Toronto Canada

Agreed! Thank you, Earth Clinic, and all the helpful, experienced posters.

Posted by Hp (Nipawin, Saskatchewan) on 11/27/2016
5 out of 5 stars

I found that Hydrogen Peroxide stopped my toothache, I have tried other remedies but nothing worked.

Posted by Boncat1959 (Indianapolis, In) on 11/02/2016
4 out of 5 stars

I have a cavity in one of my wisdom teeth. I started using Hydrogen peroxide as a rinse to keep the germs away. My tooth did have some tenderness in it at first. But then the pain went away completely. I just now came upon this article. Three cheers for Hydrogen Peroxide! It is nice to see the info I gained as well. All I did was swish some peroxide around the inside of my mouth. I made sure it went inside the cavity. kept it in my mouth for about 2 or 3 minutes. Spit it out. Then rinsed with warm water. spit it out. Then for good measure I rinsed again with a little mouthwash. I did this right before I went to bed after I brushed my teeth. And again in the morning. I am waiting for a dentist appointment. it is nice not to have any pain while I wait.

Posted by Billybones (Florida) on 10/18/2016
5 out of 5 stars

Hi everybody. I'm 65. Ten years ago all of my upper teeth were hurting. Dentist told me to yank them all and get dentures. $3 to $4 thousand smackers! The big hunt for a natural cure began. Found HP. Brushed my teeth with a cap full of 3% two times a day for 2 days. Let it foam for about 5 minutes. Pain free after that. Here I am 10 years later with all of those teeth that the dentist told me to yank except one. I still brush with HP once a week. My teeth are doing GREAT! Thanx for the opportunity to help someone else. - Bill

Replied by Sandi

BillyBones, I am hoping you still have this article on your system. Id like to know how your teeth are doing today, 2 years later. I have a dentist that wants a tooth pulled and I am freaking out. The amoxicillin worked, and I am using hp swishes and everything is getting better, but afraid what is lurking at the root. Hope you get this to let me know how you're teeth are now doing. thanks

Posted by Mosin9130 (Toledo Ohio) on 09/30/2016
5 out of 5 stars

My abscess is 100% gone after using the Peroxide method. What I did was boil a sewing needle for 10 minutes to sterilize it, I poked the abscess a few times and then pressed on it and drained it all out. I immediately swished straight 3% peroxide afterwards. It turned the gum (Where the abscess was) white for half an hour which was the infection being killed. I continued using peroxide for several days after. It's been over a week now and the abscess has not returned and the pain is gone. So relieved!

Replied by Mosin9130
Toledo, Ohio

Update: 7 months later and the abscess has not returned! HP is WONDERFUL! Also a cavity of mine was giving me almost unbearable pain today, swooshed some 3% HP on the cavity and the pain is gone. So glad I found this website :)

Posted by Brendan D. (New Jersey, Usa) on 07/20/2016
4 out of 5 stars

So far so good. I just used a capful of the 3% hydrogen peroxide literally just five minutes ago, for the first time. Too soon for a final verdict, of course, but the tooth/gum pain seems to be reduced (not entirely gone). I did a capful of the 3% HP, without mixing it with water as a 50/50 mix, swished it around the (presumably) infected area for 30 seconds, then spit it out, then repeated once, then rinsed my mouth with water. My dentist can't see me for two weeks so I need to bridge the gap between now and then. I'm hoping the pain stays under control for a bit. 4 stars for now, will re-rate after a few hours.

Posted by Francisco (West Palm Beach) on 05/23/2016
5 out of 5 stars

Tooth abscess for second time after 6 months -

I used hydrogen peroxide every hour for one day. Next day swelling and pain were gone. Antibiotics are in the trash can and I am cancelling my root canal appointment.

Also going to buy a bottle of colloidal silver and use it once a week to make sure no more infections occur.

Replied by Bobbie

HP gets rid of infection temporarily but will come back, you are playing with fire not taking the antibiotics. You will need the root canal. When it comes back if the puss gets in your blood can cause gangri and is life threatening. Please take your antibiotics and get the root canal.

Replied by Charity
Faithville, Usa

Yes and please read the book the root canal coverup before getting one in your mouth. Wisdom before action.

Replied by Charity
Faithville, Usa

I would like to add to my dental post here. Borax foot soak using a pinch in 2 gal of water once a week made my bad teeth hurt worse the next day, then they seem to be improved. Like it's healing them. I suspect lack of borax has made the calcium go in the soft tissues and not my bones/teeth over the years.

As far as dental pain goes.... I have rode the rodeo....been to the dentist and had the works done( 9 crowns, some root canals, & partials ) and then lost ten teeth while following that program.., due to the teeth worked on abscessing... all that money spent has taught me painful lessons about the system I had trusted. Flouride is bad for your bones and teeth and organs. Hitler used it to make people docile.

Alpha lipoic acid helps a lot for nerve pain. MIX a Tbsp each of baking soda & coconut oil with a drop of peppermint oil, at bedtime...APPLY a small amount of this mix on gums and teeth and head off for a good nights sleep. Works wonders .Get ALL your vitamins, amino acids and water, minerals in balance and detox your body . You can restore your youth . Keep studying and don't believe everything you read.

If you do use the borax get ready for a rodeo ride for awhile....still expecting miracles, because I have faith in the one who designed my teeth . Amen

read earth clinic, go to youtube, and lots of other good sites, as your own library . Just because it's at your local library you can't go blindly trusting it to be the truth that heals you.

google regenerate teeth, people have found ways for teeth to heal & regrow and some have received prayer miracles. God is good all the time, even if he shows up at the last minute. He's stretching my faith, as usual.

Posted by Elyn (Milwaukee) on 12/08/2015
4 out of 5 stars

It is 2 am. My husband, who has had tooth pain for 2 days now, woke me at 12:45 howling in pain and using unprintable words. After googling emergency dentists to call in the morning, I came here to EarthClinic and found out about gargling with 50/50 hydrogen peroxide and water.

Within 3 or 4 minutes he was smiling... but it was short-lived. So I hauled him back out to the kitchen sink for a repeat... but this time he's doing it with just the peroxide, no water.

I'm gonna' call it 'better but not cured.'

Replied by Liz
Boston, Ma

Garlic works wonders for all things tooth pain related. I've noticed that many others here do as well.

Slice up a clove of raw garlic and have him put it on the gums surrounding the angry tooth or abscess. He can hold it in place with his tongue, or even his fingers, if necessary.

It will burn a bit at first, but don't let that deter him. Have him move the garlic slice from one side of the tooth to the other for about 10 minutes. Repeat this a few times a day. The more, the better, but at least 3-4x/day.

Through trial and error, I found that the garlic method works even quicker if you also take the garlic internally. If you give him a clove or two of chopped-up garlic to swallow about 3-4 times a day, it helps expedite the healing process.

Also, rinsing with warm salted water in between helps heal, too. Have him gently swish the saltwater around the affected area for about a minute, then repeat the saltwater rinses a few times day/night.

The last time I had a tooth issue, my tooth was so infected that my jaw and part of my face was swollen, and the pain...UGH! Yet, as bad as the infection was, using the methods I described above, I was pain-free within just days! The best part? That tooth hasn't bothered me since, and it's been about 2 years! :)

Good luck!

Replied by Earthling

I couldn't agree more! In fact, just a week or so ago I wrote a post making almost the exact same recommendations that you did, except for the saltwater rinses, which I agree are a good idea as well.

All hail GARLIC! It has so many beneficial uses. It's something that everyone has access to, and costs pennies per 'treatment'. It's also great for stopping a cold in its tracks if you load-up on it the moment you feel like you're coming down with something.

Nothing is better than the real thing, though. The garlic capsules aren't as effective when treating colds, etc. I also read recently in a consumer report that three different brands of garlic capsules/pearls tested contained only 3% garlic! Plus, they cost a whole lot more.

Why pay $15-20 for a bottle of pearls to get only 3% of the benefits, when for a two bucks, you can get 2-3 entire *heads* of the real thing with 100% potency?

Posted by April (Bowling Green ) on 10/24/2015
5 out of 5 stars

I have a broken molar, and being new to the area had to find a new dentist. I finally found one that takes our insurance but my appointment is still a week away. By a few days ago, the tooth had gotten infected and the roof of my mouth swollen to the point I had trouble closing my mouth. I tried two things. First, I pulled coconut oil for three mornings, with no change but increased swelling and pain. Finally yesterday morning, I mixed half hydrogen peroxide 3% with water and swished it in my mouth for about five minutes, then rinsed, brushed my teeth and went to work. Around noon, my work partner asked if I was ok and I realized that I was tasting something really bad. Apparently the abscess started draining, and by this morning the swelling and pain is gone. Still going to have tooth pulled, but thanks to the H202, no infection and no pain!

Posted by Blacjac687 (Toledo, Ohio) on 04/15/2015
5 out of 5 stars

I''m not going to give anyone a bunch of bs. by talking about garlic cloves or dentist's so here goes..."I have to have all my teeth pulled but in insurance". I've had several abscesses and all I did was to massage the sore area until the pain subsided and then put about 2-3 cap's of Hydrogen Peroxide in my mouth and saturate the painful area with the HP. The pain will pass almost instantly and since I have several bad teeth, rinsing with HP once or twice a day and letting it foam up in my mouth heads off any further flareups.

"IT'S ALL THAT SIMPLE "! I Should add "I did have a puss bag on my outer gums" so I sterilized a needle and lanced it a few times to empty it, adding pressure on my face to make it drain "then put some HP (APPROXIMATELY 1 OZ.) in my mouth and let it foam to kill the infected puss. "ALL MY PAIN WAS GONE IN 5 MINUTES "!! NOW JUST RINSE YR MOUTH AND HAVE A BETTER DAY......JACK

Replied by Anon

I love how you posted here to help someone else. I hope you reconsider having your teeth pulled . You can heal teeth no matter how bad they may be . I had a lot of teeth pulled and it has created new problems.

Posted by Tom (Windy City, Illinois) on 12/23/2011
4 out of 5 stars

I had a tooth /gum infection of an upper jaw molar (not the back one) that caused swelling on the left side of my face up to my eye including swelling the eye partially shut. I got prescriptions for antibiotics which brought the swelling down but still left what appears to be a bump abscess on my gum which would cause the tooth to become sore also.

The antibiotics clearly were not working to get rid of the abscess, so earlier today I tried injecting 3% hydrogen peroxide (no stabilizer) at several locations in the gum (2-5ml) in and around the abscess. Warning - doing this will really hurt like hell when actually injecting the hydrogen peroxide, especially the first few injections when the hydrogen peroxide is actually killing the infection under the gum but it seems to have removed almost all the abscess infection - there is little or no soreness from it now - however the area is somewhat sore from all the syringe pokes as I type - I'll have a better idea tomorrow if the infection is completely cleared up when the gum heals some but it's feeling much better already.

I don't know if injecting hydrogen peroxide is 'safe' so I can't recommend it for others, but it definitely seems to have the potential to stop at least some abscesses.

Replied by John Wynhausen
Joplin, Mo.
5 out of 5 stars

I had similar results injecting HP in the abscess region. Yes the pain was intense. It took several tries but after more than a week the abscess is not active. Did it kill the infection deep in the tooth? No idea. But since there is no puss being produced, it just may have done that. Did it feel risky? Yes. I would not have done it if the antibiotics had seemed to be working.

As to the safety: I seriously doubt it could trigger an infection as it clears bacteria in its path. I wish I had tried this earlier with a tooth that eventually rotted, broke and was finally pulled.

Replied by John Wynhausen
Joplin Mo

Soon after posting the above comment, my abscess re-erupted. The pressure started to build in the maxilla, so I injected it again. Once again I had intense pain locally for about 30 seconds. The HP injection pulled out a load of blood and pus. The abscess itself did not go down right away but now more than 24 hours later there is a small crater where the abscess was. What I would hope is that the "tissue hardening" effect of the HP would generate a pathway to the deep infection and eventually clear it using this technique. Probably wishful thinking, but there seems to be the promise of at least staving off more radical approaches for awhile.

Replied by John W
Joplin, Mo

More than one week after, no indication of infection I am happy to report. I will report in another month if I remain clear. I still face longer term dental work but at least I seem to have the infection in a managed state. Whether something lingers and again erupts, time will tell.

Replied by John W.
Joplin, Mo

Its been a month and I have had no further need for injections. The abscess is gone although a slight depression remains where it was. I still sometimes feel a slight pressure in the region (swimming under water for instance) but no signs of infection. How my body is handling the cavities is anybody's guess, but for the time being I am managing and I feel more dentally empowered.

Replied by John W.
Joplin, Mo

I wanted make one last follow up. My report of 09/12/2016 was a little pre-mature. I had to go in again with the H2O2 injection. I used a different angle, forced the remaining infective core out and have had no problems since then. Just mustering up the courage to do the initial injection was the hardest part. Subsequent follow-ups were uncomfortable but not scary. Follow through made the difference. My infected gum and bone is completely free of infection. The first sign of eruption took place following dental work more than 20 years earlier. Why didn't I know I could manage it this way back then? It would have seemed too radical a move for me, but watching and waiting did nothing other than probably shorten my life. Oh well. Its not a problem anymore.

Replied by Robert Henry
Ten Mile , Tn

JOHN,,,,,, what strength H2O2 did you use?


Replied by Tiffany

Hi John, what did you use to inject HP?