Natural Home Remedy from Your Own Kitchen:
1.Bad Breath Home Remedy Using Apple Cider Vinegar:
Dilute 1/2 tablespoon of the vinegar into a glass of water and gargle it in your mouth for 10 seconds at a time.
2.Bad Breath Home Remedy Using Baking Soda:Baking soda is a fantastic remedy for bad breath, since it changes the pH (acidity) level in your mouth, which results in a less friendly environment for odor-causing bacteria. Simply add some baking soda onto your toothbrush, brush with it, and then rinse with water.
3.Bad Breath Remedy Using Citrus Fruits:
Bad breath is often simply the result of a dry mouth. If this is the case, simply eating a citrus fruit that is high in citric acid (such as an orange, lemon, or grapefruit) can help improve your breath significantly. The acid in such fruits stimulates the saliva, which helps suppress some of the odor-causing bacteria. At the same time, the tangy taste of such fruits leaves the mouth smelling fresh.
If the symptoms are severe ,then you should consult a doctor.