Steroid inhalers are medical devices used to deliver anti-inflammatory medications directly to the lungs. They are commonly prescribed for conditions like asthma and chronic obstructive pulmonary disease (COPD). By reducing inflammation in the airways, these inhalers help improve breathing and prevent asthma attacks. These inhalers come in different forms, including metered-dose inhalers (MDIs) and dry powder inhalers (DPIs). Patients typically use them on a regular schedule to maintain control over their symptoms. It's important to follow the prescribed dosage and technique to ensure the medication is effective.