People with bad taste in the mouth need to pay attention to oral hygiene, pay attention to conditioning, if because of disease caused by bad taste in the mouth need timely treatment of disease. 1. People with bad breath need to pay attention to oral hygiene, usually every morning and evening seriously brush your teeth, rinse your mouth after meals, but also with the use of dental floss to clean the teeth. Diet, pay attention to light, drink more water, avoid eating spicy and stimulating food. 2. If the odor in the mouth is caused by diseases, such as digestive system diseases or dental diseases, you need to treat the diseases first. After treating digestive diseases or dental diseases such as systemic periodontal therapy, the bad taste in the mouth will be eliminated. In conclusion, if you have a bad taste in your mouth, you need to find the cause and solve the problem, and if you feel sick, you need to go to the hospital in time.