 [ Symptoms ] if you retire outside the open enrollment period can you purchase health insurance from the exchanges upon retirement [ Disease ] your first step is to see an ent specialist for a thorough examination of your nasal airway obstructions like polyps can be surgically managed if the airway is clear the sinuses are fine etc your next step would be to see an allergist since allergies are the most common cause of chronic nasal congestion even if you have never had allergies before remember go to the ent first