If you want to relieve bad breath, you have to ensure good oral hygiene, first of all, you have to brush and rinse your teeth carefully, make sure that you brush your teeth three times a day, for three minutes each time, to remove the food residue, soft scale and other dirty things from your teeth surface. If there are already teeth or pigmentation on the tooth surface, you need to go to the hospital for ultrasonic scaling treatment, also known as scaling treatment, using the method of scaling in order to remove all the tartar, plaque and bacteria that have built up around the gums, creating a good oral hygiene environment and making your breath fresh. In addition, you should pay attention not to eat greasy and indigestible food. Such food will make the stomach fire, which will lead to a sour taste in the mouth, and you should eat light and easily digestible food in the diet. At the same time to regulate the mood, do not make themselves in a state of irritability, irritability, anxiety, these people will have symptoms of liver fire, liver fire people will also have bad breath. Therefore, to keep their mood open and happy, to drink more water, lower liver fire, which has a very good effect on relieving bad breath.