Introduction The diagnosis of asthma in children under five years is difficult due to changing concepts of what true asthma is in this age group.1 Wheezing can occur in this age without asthma and confirmatory lung function tests are difficult to perform.2 Many preschool wheezers become asymptomatic by school age irrespective of treatment.3 Asthma management in very young patients is based largely on clinical judgment, expert opinion, and cost of medications owing to the lack of clinical evidence in this particular patient population. The younger the child, the less available is the guidance and/or benefit from medical progress.4,5

 

 

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