When you smell an unpleasant smell in your nostrils, it may mean that some odorous substances have entered your nasal cavity. These odorous substances may come from around you. For example, there may be some pollutants or odorous substances in the air around you. It may also come from your own body. For example, you may have some diseases or bad conditions in your mouth and gastrointestinal tract.

There may be many different reasons for the bad smell in the nostrils. The most common ones are gastrointestinal problems caused by unclean teeth and improper diet. In addition, there are many factors such as infection, smog, allergies, smoking and so on. If the nostril smells bad, accompanied by other discomfort symptoms, such as headache, dizziness, nausea, vomiting, etc. It is recommended to seek medical advice in time.

To remove the odor in the nostrils, we need to take corresponding measures according to different reasons. If the odor is caused by oral problems, it is suggested to strengthen oral hygiene, brush your teeth frequently and rinse your mouth frequently. If it is a diet problem, we should adjust the diet structure to avoid eating too greasy and spicy food, which may easily lead to gastrointestinal problems. If the odor is caused by infection, allergies and other problems, it is recommended to seek medical advice in time. At the same time, usually pay more attention to keep indoor air circulation, avoid inhaling too dirty air, and also help to prevent odor.