Asthma is a heterogeneous disorder with a variable course. It begins very early in life and of different phenotypes.
Mainstay treatment for asthma is corticosteroids as controller therapy and guidelines recommends the add-on and
step-up or step-down strategies. This review will focus on the studies that enhanced our understandings of the effects of
inhaled corticosteroids on the natural course of asthma in regard to symptoms control, protective effect on lung function
and potential side effects encountered during the treatment. Studies that evaluated approaches on steroid sparing effects
and the effect of asthma progression in children are also reviewed.
Keywords: Asthma, children, inhaled corticosteroids, rhinitis, specific immunotherapy
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