We first recommend to check your home care. Are you brushing your tongue and the soft tissues around your teeth? Are you flossing your teeth properly or deep enough? If your homecare is good perhaps it is caused by medications that you are taking. Have you had your teeth checked for decay recently? We recommend that if you suffer from bad breath start with rinsing with Listerine which will kill bad breath bacteria. We also recommend having your teeth cleaned regularly to remove debris that your toothbrush cannot reach or to address any decay that may be present. If you continue to have bad breath speak to the dentist to check if there are other reasons that should be addressed.