Smoking bad breath can be solved by quitting smoking, oral cleaning, dietary modification and other methods. 1. Quit smoking: cigarettes contain a lot of tar, long-term smokers will not only yellow teeth, the mouth will also have a very strong tar flavor, thus causing bad breath. Quitting smoking can significantly alleviate the symptoms of bad breath, is the fundamental way to remove bad breath caused by smoking. 2. Oral cleaning: including scaling and daily cleaning. Dental scaling can remove tobacco stains and plaque on the teeth, clean the mouth and help remove bad breath. Mouthwash, oral spray and aromatic toothpaste can be used daily to improve bad breath. 3. Dietary regulation: eating more fruits in daily life, such as oranges, grapefruit, oranges, apples, etc., can neutralize nicotine and reduce bad breath caused by smoking, and also pay attention to avoid spicy and stimulating food. Frequent bad breath patients, pay attention to quit smoking and alcohol, in addition to pay attention to adjusting the diet, eat more fresh fruits and vegetables, supplement vitamins. If there is oral inflammation and other oral diseases, you need to go to the stomatology department in time for examination and treatment. In addition to develop good hygiene habits, diligent brushing and rinsing.