Acidic foods such as coffee, dried plum and lemon can eliminate bad breath.

Although halitosis is not a serious illness, it makes people dare not communicate with people at close range, thus producing inferiority complex and affecting normal interpersonal and emotional communication. According to the World Wide Web, in addition to paying attention to not eating or eating spicy foods such as onions and garlic, people can usually relieve bad breath by the following methods: If you have the habit of drinking coffee, gargle or chew gum after drinking coffee can play a role in improving bad breath. Bad breath is actually caused by food residue left between the teeth and on the tongue. Gargling reduces food residue, and chewing gum boosts saliva production and suppresses bad breath. Sour foods such as prunes and lemons have the effect of alleviating bad breath. In ancient times, there was an allusion to "quenching thirst by looking at plum blossoms", that is, acidic food can promote saliva secretion and play an important role in preventing halitosis.