With the rapid increase in the prevalence of allergic diseases over the last century, the World Health Organization (WHO) ranks allergy as the 4th chronic disease in the world after cancer, cardiovascular pathologies and AIDS. 1 It is estimated that half of the world's population will be allergic by 2050.Allergic asthma is the most common asthma phenotype in children. 2 The percentage of patients in whom asthma is attributed to atopy varies from 35% to 50% depending on the study. 3 Nevertheless, allergic rhinitis, atopic dermatitis, and food allergy are strong risk factors for asthma inception and severity both in children and adults. 2,4

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