You smell your own breath through your nose because odor molecules travel up from your mouth, mixing with nasal mucus and air, especially when your sinuses are involved (like with post-nasal drip or infection) or your nose is dry, allowing odors to linger and be perceived. It's a natural pathway where exhaled air carries scents from your mouth into your nasal cavity, making odors from dental issues, sinus infections, tonsil stones, or even food more apparent through your nose than just your mouth.
Oral Health Issues
Many common oral problems are likely to contribute to bad breath. So if you have an existing condition, like gum disease, open wounds, sinus/oral infection, or respiratory problems, have a loved one or dentist see if it's also causing bad breath odors.
Several conditions may cause a bad smell in the nose, including sinusitis, tooth/ mouth infections, dry mouth, some medications, some foods/drinks, and olfactory damage. Typically, a bad smell in the nose is not life-threatening but can decrease the quality of life.
If you're finding it hard to breathe through your nose, it could be the result of anything from a stuffy nose or sinus infection to nasal obstructions such as a deviated septum. That said, knowing what's causing your blocked nose is the first critical step in determining how to treat this uncomfortable symptom.
Bad breath odors vary, depending on the cause. Some people worry too much about their breath even though they have little or no mouth odor. Others have bad breath and don't know it. Because it's hard to know how your breath smells, ask a close friend or relative to confirm if you have bad breath.
Pop a Sugar-Free Mint
Sugar-free mints can be used to freshen your breath before important business meetings. They might not work as a bad breath cure, but they will mask the odour and make your breath temporarily minty fresh.
Can you train your body to breathe through your nose? You bet—your body can learn. Start small: focus on breathing through the nose during quiet moments, then build up. Exercises like taping your mouth at night (safely, with guidance) retrain your breathing pattern.
Breathing in steam or using a saline nasal rinse can help clear mucus and reduce odor-causing bacteria in your nasal passages. Staying hydrated helps thin mucus, making it less likely to produce a strong smell.
Microbial buildups, infections, or growths in the sinuses may cause the breath to have an aroma of fungus or mold.
Your dentist likely will smell the breath from your mouth and the breath from your nose and rate the odor on a scale. Because the back of the tongue most often causes the smell, your dentist also may scrape it and rate its odor. Some devices also can detect certain chemicals that cause bad breath.
Water will naturally wash away food particles, bacteria, and other odour-causing cells. Since bacteria survive off the leftover food in your mouth— simply rinsing after a meal will aid in fighting bad breath. Try drinking around two litres of water each day.
Breath that smells fruity or like rotten apples, for example, can be a sign of diabetes that's not under control. Rarely, people can have bad breath because of organ failure. A person with kidney failure may have breath that smells like ammonia or urine.
The obstruction caused by the deviated septum prevents proper drainage of your sinuses, leading to repeated infections. These infections can cause pain, pressure, and swelling in your face. If left untreated, you may even need surgical intervention to address the problem.
Sinuses become infected when small particles such as dust, pollen, or animal dander enter the nasal passages and become trapped. This can cause inflammation, which leads to a buildup of mucus and bacteria in the sinuses. As the bacteria and mucus accumulate, they produce a foul odor that can smell like rotten eggs.
Breath which smells like rotten eggs is often an indicator of an issue stemming from the digestive tract. Because the gut microbiota breaks down sulfur, an gas which smells like eggs is released. Causes for this can include Gastroesophageal Reflux Disease or GERD.
Don't rinse your mouth immediately after brushing, as it'll wash away the concentrated fluoride in the remaining toothpaste. Rinsing dilutes it and reduces its preventative effects.
Close your lips and inhale through your nose for a count of four. Hold your breath for a count of seven. Exhale completely through your mouth making a whoosh sound for a count of eight. This completes one cycle.
Chewing sugar-free gum or sucking on mints containing xylitol can help stimulate saliva production and wash away odor-causing bacteria. Avoiding strong-smelling foods like garlic, onions, or coffee shortly before a romantic encounter can also prevent bad breath.