INTRODUCTION
The most common chronic respiratory disorder of childhood is Asthma . It is characterized by airway hyper responsiveness with airway inflammation. Asthma is more common in children (8.6 %) than adults (7.4 %). (1) . Allergic rhinitis, Atopic dermatitis , food or inhalant allergy ,family history of asthma, is common risk factors for persistent asthma. (1). Atopy is the alone largest risk factor for development of asthma. Nearly 80% of atopic individuals develop asthma, allergic rhinitis, eczema or urticarial. (2). Atopy has been associated with increased risk of persistent and severe asthma as shown in several studies. Allergen provocation can induce bronchial inflammation. Children who developed early sensitization to food or aero antigen and had eczema are at high risk for developing persistent asthma. (3)Asthma is a global health care problem, with increasing prevalence being observed over last few decades. (1). Prevalence of asthma in developing countries is significantly different from developed countries. In India, prevalence varies widely due to the vast size of the country, variable population density, variable climate, variable pollution levels and variable life style. (4)ISAAC, largest study determining prevalence of asthma had showed prevalence of asthma in Pune of 2.9% in 2003 (5). In recent study of 2012, study conducted in Pune suggested an increase in prevalence of asthma from 2.9% to 6.7%. (4.) This study defined asthma from history provided in questionnaire and no clinical examination was done to confirm the diagnosis. To substantiate this observation after confirming the diagnosis with examination, this study was planned. PEFR was performed as a marker of lung function.