MARK THOMAS / SCIENCE PHOTO LIBRARY MARK THOMAS / SCIENCE PHOTO LIBRARY
Asthma treatment. Father helping his young (21 month old) son to use a nebulizer. The nebulizer delivers fine droplets of a drug into the face mask for inhalation. The drug being used here is Becotide (beclomethasone), an anti-inflammatory corticosteroid used to prevent asthma attacks. An electric or hand-operated pump sends a stream of air or oxygen across a chamber containing the drug, dispersing it into a mist. This is part of the boy's daily treatment, but nebulizers are also used in emergencies to treat severe acute asthma attacks.
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