Rhinitis is an inflammation of the nasal mucosa. This can be caused by a variety of problems including allergy, viral infections (ex. the common cold), chemical irritation, etc. The result is swelling and irritation of the nasal lining resulting in congestion, obstruction, mucus production, accumulation, and post-nasal drainage. Treatment is directed at the underlying cause of the inflammation whether allergic or non-allergic. Topical saline irrigations (neti-pot, saline spray) may be effective. Medications such as antihistamines, decongestants, inhaled nasal steroids also play a role.