Hi lybrate-user. First of all thank you for your query. Bad breath
is common for most of the people. It can be due to many reasons. As far as oral cavity is concerned I wanted you to see if there is any decay in your tooth which can cause food debris to get stuck snd cause badbreath. Also due to stains and calculus
it can also cause bad breath. Other reasons can be gastric (regurgitation) and maxillary sinus (sinusitis
. So check for all these causes. Do tongue scraping and brushing twice and chlorhex mouthrinse. Drink lots of water. Keep calm. Hope I hav answered your query. Thank you and have a healthy day.