For what possible reasons have i had a stuffy nose for two years straight?

Other symptoms?: Hi. You may have allergies due to year-round exposures. These would typically have itchy nose/eyes/throat with sneezing and runny nose. Consider otc allergy meds. You may have swollen nasal passages for any number of reasons. Consider eval with provider. You may have chronic sinus infection. However, this would typically have lots of thick snot, cough, headache, sometimes fever (see a doc).