Hello and hope you are doing well.
Your symptoms of bad foul smell in the nose could be due to sinus infections. They are due to stasis and infection of the sinus cavities, and the resultant drainage into the nose causes the bad smell. Facial pain, fever and nasal discharge are the other symptoms of sinusitis. Any infection or blockage in your nose can cause you to smell something that is not there. You will need to consult your primary care physician for proper assessment. In the meantime practice good breathing exercises, humidify your room and do steam inhalations.
Hope this helped and do keep us posted.
Im 21 years old and I suffered from the same condition. It happened when i was 17 yrs old in the summer...;My life was good until then I had friends and very social. Then all of a sudden this odor from my nose and breath came. I isolated my self from the world for 4 years. I dropped out of high school my senior year for fear of embarrasement. I went to dermatologists, specials, Emergency rooms, had my tonsils pulled and all but nothing worked. It got to the point where i was mentally drained and suffered from severe anxiety and depression. This may not be the most common answer u recieved but remember ive tried everything and been there. And no matter what people say u have to have that condition to truly know the pain.;.But one i prayed and prayed and prayed....I watched this this show called the 700 club and i accidently came across it they happened to be praying about myy exact condition. Trust me this was no coincidence...I prayed wit them and that moment i was healed..I ******** u not. I'm no pastor just a young guy who WAS suffering...Just Pray and Keep Faith. Trust Me