In addition, Chinese medicine believes that bad breath is caused by stomach fire or wet and turbid transpiration. Besides paying attention to oral hygiene at ordinary times, we should also properly eat foods with the functions of clearing away heat and eliminating dampness, avoiding filth and deodorizing. For example, fennel is used for soup or raw chewing, orange cakes are often chewed, and preserved mums are melted. In recent years, it has been found that kelp, a marine algae plant, contains highly effective substances for deodorizing, and its deodorizing effect is three times that of flavonoids, an existing halitosis inhibitor. Therefore, people with halitosis can eliminate halitosis by eating kelp regularly.
The principle of drinking tea to relieve bad breath is that the food left in the mouth is fermented to produce acidic substances, which have corrosive effects on tooth enamel, and for a long time, cavities are produced. Both bacteria and food fermentation can produce unpleasant smells; When some people suffer from indigestion, bad breath can also occur. Drinking tea can inhibit the growth of bacteria. Even if bad breath has occurred, drinking tea also plays a role in eliminating the odor. Tea can help digestion and absorption, and can prevent or eliminate bad breath caused by indigestion.