Figure 2).

Treatment algorithm for preschoolers with asthma. *Symptoms occurring ≥8 days/month, ≥8 days/month with use of inhaled short-acting β₂-agonists (SABA), ≥1 night awakening due to symptoms/month, any exercise limitation/month or any absence from usual activities to asthma symptoms; ^†Episodes requiring rescue oral corticosteroids or hospital admission; ‡Asthma education including environmental control and a written self-management plan; ^§Inhaled corticosteroids (ICS) are more effective than leukotriene receptor antagonists (LTRA)