Yet, you also have the choice of not seeking professional advance. For one, you may try scraping the white or yellow film covering the surface of your tongue. You may use a spoon for this. Make sure that you penetrate the entire covered surface. The accumulation you have collected shall be checked 30 seconds after. The doctors recommend that your brush your teeth for at least 2 times a day. Replace your toothbrush at least every 3 or 4 months. 2. Clean your tongue. Use a dentist prescribe tongue scraper. This is important since bacteria harbor to your tongue the most. If you use toothbrush, make sure that you brush your tongue at least 15 times. While there may be a high variability in terms of causes, they still all boil down towards the oral bacteria that thrive inside our mouths. There are also foods and beverages that could cause bad breathe. Some of these food work by leaving trace odors inside the mouth while others would promote higher acidity level. Improper/poor oral hygiene and dental problems Dental problems are the result of improper or poor oral hygiene. When a person does not brush his teeth and tongue as often as he should, floss at least once a day, and use an oral antiseptic, food particles that remain in the mouth and in between teeth will emit hydrogen sulfur vapors and bacteria. The production of saliva stops when we sleep; the reason why we wake up in the morning with the "morning breath" even if we brush our teeth and use oral antiseptic the night before. Smoking tobacco and other medication also contribute to the occurrence of bad breath. Nasal, throat, and mouth conditions such as nasal discharge, canker sores, upper respiratory infections, bronchitis, mononucleosis, tonsillitis, strep throat, and sinus infection can also become the reason for bad breath. First things first; most bad breath cases are either situational or occasional so it can be treated easily by the following way... 1. Brush your teeth! This is the most basic thing you can do clean your teeth and remove that foul odor off your mouth, and it is effective too. Doctors recommend that you brush your teeth for at least 2 times a day with toothpaste with fluoride for a minimum of two minutes.