This guide explains the role of inhalers in managing obstructive airway diseases, covering three main types of inhaled medications: bronchodilators that relax airway muscles for quick symptom relief, inhaled corticosteroids (ICS) that reduce inflammation and mucus production for long-term control, and combination inhalers containing both medications. It emphasizes proper inhaler technique for effective medication delivery to the lungs and suggests consulting healthcare providers or respiratory nurses if technique needs checking, with QR codes provided for additional information.