Treatment of allergic rhinitis (7). The entry points into therapeutic approach depend on the severity of the rhinitis symptoms. Therapy can be step up or step down depending on control obtained in response to the treatment. If less than 2 years of age and do not respond to antihistamine within a week, the diagnosis should be reconsidered before stepping up therapy. *Oral antihistamines may be better tolerated, whilst intranasal antihistamines have a more rapid onset of action. **Reconsider diagnosis if not controlled within 1-2 weeks.