2) Clean Your Tongue Make it a new habit to scrape your tongue. You can either use a tongue scraper or just a normal spoon. Cleaning your tongue regularly helps reduce the bacteria and residue food particles that cause bad odour.
3) Lemon Juice The citric acid in lemons can help kill the bacteria that resides in your mouth. You can use lemon juice as a mouth wash by squeezing about one teaspoon of it into ½ glass of water and adding a dash of salt in it. Gargle it just like how you would the water mouth wash above.
4) Cloves Cloves have antimicrobial properties. Just chew a couple of them in your mouth thoroughly and see them work their magic in bringing you fresher breath in just a few minutes!)
5) Baking Soda Again? Yes… This miracle worker works wonders on bad breath too. You can either brush your teeth with baking soda or mix it with some warm water and use it as a mouth wash to kill those bacteria that are causing the bad odours.
6) Fresh Vegetables Vegetables such as celery and carrots are good against plaque. Include them in your diet to enjoy fresher breath.
7) Tea Tree Oil Tea tree oil has antimicrobial properties. Just look out for any toothpaste with tea tree oil and use it. Combine with any one of the other methods for best effect.
8) Orange Like Lemons, oranges have a high concentration of citric acid which can not only kill odour-causing bacteria but stimulate the production of more saliva that will aid in fighting bad breath. Just include an orange in your regular diet, if you have not already done so.
9) Parsley Chew some fresh parsley leaves for about 2 minutes. Their chlorophyll content is effective in neutralizing bad odours.
10) Practise good dental hygiene I think the best way to prevent bad breath though is to practise good dental hygiene. Brush your teeth at least twice a day (once in the morning after you wake up and once before bed). If you can, brush your teeth after every meal too. Floss daily to remove plaque from hard-to-reach places. Change your toothbrush at least once every 2 months. And visit your dentist regularly for scaling and polishing. I hope these 10 home remedies help you to combat bad breath.
source: https://101effectivehomeremedies.com