Prevalence of Aeroallergens in Asthmatic, Allergicrhinitis, Eczema and Chronic Urticaria in Iran

Âsthma is a common chronic inflammatory of airways especially in childhood. Çlinical manifestations includes; cough, wheezing and with less incidence dyspnea. Âllergic rhinitis is a common nasal inflammatory disease in the world. Prevalence of ÂR is 10 to 40 percent in different regions in the world. Çlinical manifestations of allergic rhinitis are sneezing, pruritus, congestion and rhino rhea. Ëtiologies of allergic disorders aremultifactorial. Many of patients with chronic urticaria have concern that different allergens such as aeroallergens and or food allergens could induce or exacerbation of chronic urticaria.Âeroallergens have an important role in exacerbation of allergic disorders especially asthma and allergic rhinitis but they are less important role in eczema and chronic urticaria.in Ïranian different studies with skin prick test that a standard test for diagnosis of aeroallergens showed more incidence of pollens such as grasses, weeds and trees in dry and warm climates but more mites in humid and warm climates such as north of Ïran.