Hello, bad breath could also be because of- stomach problem, cold, not drinking enough water, fasting for long time, acidity. It could also be because of deposits on your teeth. you need get the your scaling and polishing done . Brush twice a day regularly.Rinse after every meal.floss regularly.night flossing should be done regularly

first of all. lets find the reason of bad breadth. so firstly visit a dentist and then do a scaling and polishing.later learn correct brushing technique and flossing . so that you will be able to maintain a good oral hygiene by yourself.you can use any mouthwash which is available in market but once when you remove the bad breath then you will be able to get a good result of mouthwash.

Hi.... To reduce or prevent bad breath: Brush your teeth after you eat. Keep a toothbrush at work to use after eating. Brush using a fluoride-containing toothpaste at least twice a day, especially after meals. Toothpaste with antibacterial properties has been shown to reduce bad breath odors. Floss at least once a day. Proper flossing removes food particles and plaque from between your teeth, helping to control bad breath. Brush your tongue. Your tongue harbors bacteria, so carefully brushing it may help reduce odors