Nasal - terrible fowl smelling - always running - does not go away with steaming or saline solution. suffered with it for more than a year?

Sinus infection: This very likely is an infection in the sinuses surrounding your nose. When you have the foul smell sensation, it is likely bacterial and would respond to antibiotic therapy. You would need to have an evaluation and treatment from your doctor or by telemedicine appointment.

Sinuses : These can be symptoms of a chronic sinus infection or a nasal polyp. Consult an ear nose and throat doctor for diagnosis and treatment