I brush multiple times in a day, use mouth wash as well. Take mouth fresheners multiple times. But, seem to never get rid of bad breath. I don't have bad gums either. Any suggestions?

  • Mouth wash with alcohol in it can dry out your mouth. Dry mouth is a cause of bad breath, as drummer1221 pointed out in his answer. Commented Jul 23, 2018 at 12:55

6 Answers 6


First. Are you sure you have bad breath? Is there any chance you have halitophobia?
People with halitophobia are paranoid about the smell of their breath. They often misinterpret other people's behaviour and comments, thinking they're suggesting they have bad breath. They become obsessed with cleaning their teeth, chewing gum, and using mouth fresheners.

Here are some possible causes from the British National Health Service web site:

Food and drink

Eating strongly flavoured foods, such as garlic, onions and spices, is likely to make your breath smell. Strong-smelling drinks, such as coffee and alcohol, can also cause bad breath.

Bad breath caused by food and drink is usually temporary. It can be avoided by not eating or drinking these types of food and drink too often. Good dental hygiene will also help.


Smoking is another cause of bad breath. As well as making your breath smell, smoking stains your teeth, irritates your gums, and reduces your sense of taste. It can also significantly affect the development of gum disease, another major cause of bad breath. Stopping smoking will lower your risk of gum disease and help prevent bad breath.

Crash dieting

Crash dieting, fasting, and low-carbohydrate diets are another possible cause of bad breath. They cause the body to break down fat, which produces chemicals called ketones that can be smelled on your breath.


Some types of medication can also cause bad breath. These include:

  • nitrates – these are sometimes used to treat angina, chest pain caused by a restriction in the blood supply to the heart
  • some chemotherapy medication
  • tranquillisers (phenothiazines)
    If the medication you're taking is causing bad breath, your GP may be able to recommend an alternative.

Medical conditions

In rare cases, bad breath can be caused by certain medical conditions. In dry mouth (xerostomia), the flow and composition of saliva may be affected.

A lack of saliva can cause more bacteria than normal to build up in your mouth, as well as a change in the types of bacteria. A build-up of these in the mouth may lead to bad breath.

Dry mouth can sometimes be caused by a problem in the salivary glands or by breathing through your mouth instead of your nose.

In some cases, gastrointestinal conditions can also cause bad breath. For example, a bacterial infection of the stomach lining and small intestine (H. pylori infection) and gastro-oesophageal reflux disease (GORD) have been linked to bad breath.

If a gastrointestinal condition is thought to be causing your bad breath, you may need to have an endoscopy. This is a procedure where a piece of equipment called an endoscope is used to examine an area inside the body, such as your airways or abdomen.

Other medical conditions that can cause bad breath include diabetes and lung, throat, or nose infections – for example, bronchiectasis, bronchitis, tonsillitis, and sinusitis.


Breathing odor can be caused by food particles between the teeth. So the use of dental floss may be appropriate.


Try brushing your tongue.

From Colgate:

You may brush twice a day and even sneak in an extra toothbrushing after lunch, but until you learn how to clean your tongue, you may not be able to get rid of lingering halitosis, or bad breath.

From Healthline:

You brush and floss twice a day, but you could be doing your mouth a disservice if you aren’t also attacking the bacteria living on your tongue. Whether it’s to fight bad breath or just for good dental health, cleaning your tongue is important, dentists say.


Do you have dry mouth? That could be a cause, if so. There are several OTC products, like mouth washes, lozenges, toothpastes, etc, to help relieve it, and you can get them at any pharmacy store or Walmart/Target, and so on.

  • Note that mouth washes with alcohol in them can dry your out more. Make sure to get one that is specifically for dry mouth. Commented Jul 23, 2018 at 12:53
  • I do not have a dry mouth. I do drink a lot of water and don't smoke either. I must have a tried a lot of toothpaste just to fight out the bad breath. May be i have to visit a dentist
    – sriinnu
    Commented Jul 26, 2018 at 14:07

Assuming there is no "smoking gun" you need to correct, there is one effective remedy I know of. Flossing does help slightly, as does brushing with a toothpaste containing triclosan, but the only really big benefit I experienced came from using a mouthwash containing chlorine dioxide. You can buy Smartmouth commercially, or you can prepare your own formulation as described in this paper. If preparing your own, you may use a commercial mouthwash as a base, and you must measure pH. Also, don't mix the two parts until you're ready to use it.

If you mix your own, please don't buy the sodium chlorite from a quack. There are people saying this chemical cures autism and cancer. Those people don't deserve your money.


Bad breathe occours in our mouth, when some food particles get deposited among our teeth or when we take some smell generating items like alcohol, tobacco, spicy foods etc. We should take the following steps to get rid of bad breath. 1.Firstly, we should minimise the use of alcohol, tobacco, coffee and spicy foods. 2.After taking any kind of food or meal, we should wash or rinse our mouth properly with water so that no food article remains deposited on or between our teeth. 3. We should make our habit of brushing our teeth daily twice, in the morning and at night before sleeping. We should brush properly each tooth on front,
back and top chewing surface with up and down strokes. 4. We should make our habit of flossing our teeth daily, before sleeping, with dental floss available from floss despenser. 5. We should clean our tounge also with a brush to remove bacteria. 6. We can use green tea which has antioxidants that reduce inflammation in gums. 7. Hydrogen peroxide can be used as a mouth wash or as a gel to kill bacteria with a precaution that it is not swallowed. 8.If suffering from the gum disease, we can use warm salt water rinse. It reduces inflammation and kills bacteria, but its daily use should be avoided as it will kill the teeth. 9. We should get our teeth checked every six months from a reputed dentist. Some gas problem in the stomach can also cause bad smell from the mouth and we should take care of the stomach problem to remove the chances of bad breath.

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