[Therapy of allergic rhinitis]

Allergic rhinitis is a common disease with a prevalence of 10-20% in western countries. Allergic rhinitis may be complicated by the possible restriction of quality of life and can lead to sequelae like sinusitis, headache or even allergic asthma. The treatment of allergic rhinitis is mainly based on allergen avoidance, pharmacological treatment and specific immunotherapy. For mild symptoms of seasonal or perennial allergic rhinitis topical or nonsedating second generation oral H1-antihistamines or chromones are advised. If the patient presents symptoms of long duration or nasal obstruction is dominant, intranasal steroids should be used, which have proved to be an effective and safe form of therapy for allergic rhinitis. A combination of oral antihistamines and steroids are possible and recommended if one of these agents alone does not provide sufficient relief. If necessary this regimen is supplemented with topical antihistamines or chromone eyedrops. In cases of severe nasal obstruction, a short course of oral steroids or topical decongestants, which both should not be given longer than ten days, is recommended. Intramuscular corticosteroids should not be given, due to the suppression of adrenal glands. In addition it is important to prevent exposure to the allergen. If the treatment is not effective, further investigations should be done to exclude other nasal diseases (polyposis nasi, anatomical anomalies, chronic sinusitis). This article summarizes the recommended medications with their possible side-effects and their place in therapy management of allergic rhinitis in adults and children.