What are the best home remedies/herbs/foods to combat nasal inflammation?

Saline rinses. Buffered saline nasal rinses have been shown to be as good, if not almost as good, as medicated intranasal steroids in relieving the subjective degree of nasal obstruction (snot-20 questionnaire). A simple mixture of sodium bicarbonate, sea salt and distilled water is all that is needed to relieve much of the nasal congestion that is felt on a daily basis. Failing this, an ENT evaluation is needed.