Allergic rhinitis is one of the most common chronic health conditions in ch
ildren and adults and is responsible for considerable direct and indirect h
ealth care costs. Fortunately, there are effective medications to treat the
condition. Cromolyn sodium and intranasal corticosteroids are effective in
the treatment of allergic rhinitis, although the corticosteroids are more
effective and convenient to use. Corticosteroids may be helpful in some pat
ients with nonallergic rhinitis. Adverse reactions to these medications are
infrequent and usually local; however, the potential for a slowed growth r
ate in children who use intranasal corticosteroids must be investigated fur
ther. The pathophysiology of allergic and nonallergic rhinitis is presented
as a basis for the effectiveness of these medications.