Inhaled corticosteroids are the mainstay for daily controller medications in children and toddlers. The choice of which inhaled corticosteroid often comes down to which medication delivery device is preferred by caretakers. Young children can use metered-dose inhalers with a spacer and face mask, as long as caregivers are trained and feel comfortable with the proper technique. Budesonide is available via nebulizer, and this may be easier for infants and younger toddlers. Some children may also feel comfortable with a dry powder inhaler. If used properly, all medication delivery devices are effective, so choice is usually individualized based on caregiver and child preference. Combination inhalers are also used in children, and health-care professionals caring for children with asthma may choose these for children with moderate to severe asthma.