There are some simple ways to get rid of bad breath for temporary relief and there is no fixed 12 ways. Simple and feasible methods in daily life include brushing teeth, using mouthwash, using breath fresheners, using mouth-clearing tablets, chewing tea, chewing gum, etc. These methods generally do not cause adverse effects on the human body, but cannot really remove bad breath. Bad breath is not only caused by poor oral hygiene, but oral diseases, poor digestion and long-term constipation can also cause bad breath, so relieving the symptoms of oral diseases and improving digestive problems can achieve the effect of long-term bad breath removal. In addition to simple, everyday life can be done in addition to active treatment of oral and digestive system diseases, such as gingivitis, dental caries, periodontitis, chronic gastritis, gastroesophageal reflux, etc., these diseases through the treatment of improvement, and then by strengthening oral hygiene, usually will relieve bad breath. In addition, patients with halitosis can maintain oral hygiene on a daily basis, adjust their dietary habits and increase exercise to promote digestion, absorption and bioavailability of the gastrointestinal tract to avoid bad breath due to oral diseases, poor digestion and long-term constipation, which affects normal communication and interaction with others.