Sore Throat
Natural Remedies

Hydrogen Peroxide - an Excellent Sore Throat Remedy

| Modified on Feb 26, 2024
Hydrogen Peroxide Cure

Earth Clinic readers tell us that 3% hydrogen peroxide (H2O2) is one of their favorite methods for quickly curing a sore throat. Sore throats are particularly common during winter and cold weather, but a sore throat can appear any time of the year. Whenever a sore throat strikes, people want to get rid of it as quickly as possible. Learn about the benefits of using hydrogen peroxide to cure your sore throat.

Here's what Shawn wrote to us about how he relieved his painful sore throat with hydrogen peroxide.

Posted by Shawn: [YEA] Hydrogen Peroxide: My throat has hurt for 2 days now and it feels like it's getting worse. I am on an antibiotic for sinus infection, but I have NEVER had such a sore throat. My DR. recommended throat spray which works for about 2 mins... ibubrofen, nope, cough drops, nope. I just found this remedy and actually have it in the house. I felt instantly better, still hurts but I will continue to gargle with it. It even says it on the bottle for oral rinse.

Here's another post from Martha explaining how she uses hydrogen peroxide as a gargle.

Posted by Martha: [YEA] The best way to completely heal a sore throat quick is with 3% Hydrogen Peroxide. The regular brand from any store in the brown bottle. Just brush teeth and mouth and as far back throat as comfortably possible, then gargle about a capful or one tablespoon or even dilute it with a bit of water.

Beware of the fizz as your throat, tongue and gums are stripped of all the bad stuff! It will most likely make you gag from all the funk! Rinse and do it again! You will be amazed at the almost immediate relief! Since it is a natural remedy, you can do several times a day as needed but honestly one or two applications should do the trick! It's amazing that something so common and cheap can do such an amazing job! Best and cheapest cure out there!

What Causes a Sore Throat?

A sore throat is painful swelling or irritation in the throat that can be caused by a number of different things. Sore throats are often triggered by the common cold or a viral infection; however, laryngitis, mono, mumps, the flu and bacterial infections such as strep throat can also cause a sore throat. Other possible causes include infection or inflammation of the tonsils, irritation due to environmental factors such as smoke and allergies.

Does Hydrogen Peroxide Actually Help a Sore Throat?

No matter the cause of your sore throat, hydrogen peroxide can help. A natural remedy, hydrogen peroxide is safe and effective for treating sore throats.

How Does It Work?

Hydrogen peroxide is a powerful germ fighting agent. When you use it to gargle, it kills off germs in the throat and the mouth that are causing the irritation. Likewise, hydrogen peroxide helps to eliminate inflammation, relieving pain.

How Do I Gargle with Hydrogen Peroxide?

  • First, you have to create a diluted solution of hydrogen peroxide.
  • Mix 1 tablespoon of 3% hydrogen peroxide (brown bottle from the pharmacy) with 4 tablespoons of water. Some people use mouthwash instead to disguise the taste.
  • Use this solution to gargle several times a day.

Is It Safe?

As with any remedy, you must take care when using hydrogen peroxide as a treatment option. Be sure to dilute the hydrogen peroxide, and do not swallow even the diluted solution. You may want to cleanse the mouth with several gargles of fresh water following treatment as well.

Treating a sore throat can be difficult; however, with this natural remedy, you can treat your ailment safely, naturally, and quickly. Give this natural remedy a try, and let us know how it works for you.

Related Links:

10 Best Natural Remedies for Soothing a Sore Throat
Hydrogen Peroxide as a Natural Remedy: Benefits and Precautions
Hydrogen Peroxide Inhalation Guide: Bill Munro Method

28 User Reviews

5 star (26) 
1 star (1) 

Posted by Geneaum (San Diego, Ca) on 04/03/2023


I had a terrible sore throat - hurt to swallow. Gargled and held half peroxide and half water in mouth a few times. It definitely got rid of the sore throat, but now have no sense of taste and smell.

Perhaps if I had diluted the peroxide more than I did would have been OK, but I'll not chance it again.

Replied by mmsg
(somewhere, europe)

Geneaum, pls let us know how long it took for your sense of taste and smell to come back.

Hydrogen Peroxide
Posted by Megan (North Carolina) on 05/23/2021

Hydrogen Peroxide Gargle for Sore Throat

I've had a miserable sore throat from a sinus infection for TWO WEEKS! If I didn't have constant post nasal glop dripping down my throat I would be really concerned it was more serious. My only symptoms were sore ears and sore throat, with the drip but the sore throat has been miserable. I was hesitant to try the peroxide but was willing to try anything at this point. Tried it 15 minutes ago and got immediate relief. Tried a second time and feel better. I will gargle again this evening and will try the peroxide in my ears tonite. Thanks for the tip!

Hydrogen Peroxide
Posted by Diane (Toronto, On) on 03/08/2018

I've been researching the possibility of gargling with hydrogen peroxide for my sore throat and found your site. I'm confused as to whether it's a good idea or not because of another site I found from a doctor and this is what he said: "Avoid gargling with hydrogen peroxide and/or tea tree oil, as these potent substances can actually injure the hypersensitive throat membranes." I did try it this morning but I diluted it. It did not foam in my mouth like I read so I'm not sure how effective it was. I used one cap full to 2 caps of water. Any thoughts on what the doctor said?

Hydrogen Peroxide
Posted by Joni (Illinois) on 09/09/2017

I had a horrible sore throat...worst ever! I tried salt water, aspirin, lozenges, etc. Nothing worked. I was in bed that night when I remembered rinsing my mouth with peroxide for a tooth infection. I thought that may work. I got up and gargled with the full strength peroxide (3%). In the morning, it was better but not gone. I repeated the process and by afternoon it was completely gone. So happy to see your post, advocating hydrogen peroxide. I am here to say it is great!

Hydrogen Peroxide
Posted by Winter (Central Texas) on 03/08/2017

Hydrogen peroxide in the ears will quickly stop a sore throat. Just put a few drops in one ear at a time and leave in for 10 or 15 minutes, or until it stops bubbling. Repeat in other ear. Have tried multiple times and recommended to others and it works great!

Hydrogen Peroxide
Posted by Angela (Cottage Grove, Oregon) on 02/09/2017

I use 3% hydrogen peroxide per instructions on the bottle. Mix half and half with water. Gargle allowing the peroxide mix to hit all infected area's. (I usually always gag) Spit out the mix.....I wait a couple minutes before rinsing with water. (just to make sure its doing the job) Instant relief!!! I would not use on a regular basis.....because tho it kills all the bad germs, it also kills all the good. Please use in moderation.

Hydrogen Peroxide
Posted by Robin (Birmingham, Alabama ) on 07/24/2016

Just tried my first throat cleansing using the 3% hydrogen peroxide gargle remedy and I'm already feeling the ease of my pain and irritation. Thank you so very much!

Hydrogen Peroxide
Posted by Steve (Canandaigua, New York Usa) on 03/08/2011

I have tried just about everything you can imagine for a sore throat with nothing having any immdeiate results. The only thing I have found to work and work well is 3% hydrogen peroxide. Thank you everyone for this useful and very much painless and no longer existing sore throat. :)

Replied by Earthday78
(Virginia Beach, Virginia, United States)

Virgin Coconut Oil and Honey works everytime!

Replied by Lisa
(Orlando, Fl)

I woke up with an awful sore throat today and have been trying to kick it but nothing had seemed to work. I tried the salt water, lozenges, and decongestants with no results. I decided to give this hydrogen peroxide thing a try. As soon as I started to gargle it made me vomit into the sink. (gross! ) Needless to say I won't be trying that again...ever!

Replied by Danoj
(Islamabad, Pakistan)

Should I dilute the 3% peroxide with water before Gargling?

Hydrogen Peroxide
Posted by K Brown (Greenfield, In) on 02/26/2011

Trust these posts... This really works! Just go to the drugstore and buy the brown bottle of Hydrogen Peroxide and gargle with it full strength... DO NOT SWALLOW. Rinse several times with plain tap water. NOT FOR CHILDREN since they could possibly swallow the peroxide. Note: The directions on the Hydrogen Peroxide bottle says it may be used as an oral rinse.

Replied by Jean

Use food grade hydrogen peroxide for children.

Hydrogen Peroxide
Posted by Dawn (Atlanta, Ga) on 02/10/2011

I woke up 3 mornings gargling 3% hydrogen peroxide fo a sore throat. It was majorly sore, but I didn't want it to get any sorer. It was only sore on the right side. So, I came to my faithful and trusted site. I couldn't wait to try the 3% hydrogen peroxide in my ears. I poured a couple drops in the cap and drop it in my ear and went to bed. It did feel a little weird, but not painful at all. The next morning I got up and my throat wasn't sore AT ALL. It's been over a week now and I never got a cold. I shared this remedy with a cousin who was getting over a cold, but it was still lingering. She emailed me today and said "it worked like a charm"!!!! Thanks to EC and all of you for sharing and keeping us healthy!!

Hydrogen Peroxide
Posted by Chrissy (Akron, Ohio) on 01/29/2010

I have had a sore throat for a week now. I put the 3% Hydrogen Peroxide (no mix)onto some Qtips and then rubbed it onto my tonsils. It completely got rid of the white pus sacs on my tonsils and was foaming. The Qtips actually had pus all over them..Kinda gross but it worked!! I IMMEDIATELY felt better and am able to swallow now without pain..What a miracle that stuff is! I would rate the pain before using the peroxide, a 10, after using it a 1. Slight discomfort but not really noticeable. I also did it until I saw no more pus on my tonsil or on the qtips. Use a clean qtip each time. Also, this can cause you to be careful with that. Thanks so much for this website!

Hydrogen Peroxide
Posted by Shaeness (Denver, CO) on 06/14/2009

I have been in terrible sore throat pain for 4 days now. Been to the the Doctors 2xs and was negative to strep. The size of my tonsils measure to golf balls and the are now covered with white pus! This afternoon my mother suggested that I try her old wives tale of gargling with 3% hydrogen peroxide! I poured a small amount into a cup, approx the amount that would be used to gargle with and instantly It foamed, i began to gag as huge amounts of mucus and began to pour out! I then rinsed with water a few times. As the afternoon has passes I still continue to have to spit out mucus but it seems to be doing the trick.

Hydrogen Peroxide
Posted by Hakeem (Aberdeen, Maryland) on 03/03/2009

The Half 3% Hydrogen Peroxide And Mouthwash work for me. Sure it took action over night but my throat does not hurt anymore. :)

Hydrogen Peroxide
Posted by Shawn (Louisburg, KS) on 10/29/2008

Hydrogen Peroxide: My throat has hurt for 2 days now and it feels like it's getting worse. I am on an antibiotic for sinus infection, but I have NEVER had such a sore throat. My DR. recommended throat spray which works for about 2 mins... ibubrofen, nope, cough drops, nope. I just found this 3% hydrogen peroxide gargle remedy and actually have it in the house. I felt instantly better, still hurts but I will continue to gargle with it. It even says it on the bottle for oral rinse.

Hydrogen Peroxide
Posted by Leslie (Jamestown, NC) on 10/07/2008

Hydrogen Peroxide worked great for my sore throat. I gargled a mixture of half mouthwash, half 3% hydrogen peroxide. This definitely cut the icky taste of the peroxide. It didn't give immediate relief, but my sore throat was cured overnight. I will definitely be using this again!

Replied by Ralph
(Moore, South Carolina)

The 1/2 hydr peroxide and 1/2 mouthwash is what Colgate sells for $6 for 8-oz -- as Peroxyl. Replaced it with drugstore peroxide and dollar store mouthwash for less than 25cts.

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