Steam inhalation involves inhaling warm, moist air to relieve symptoms of respiratory inflammation and congestion. It works by loosening secretions, relaxing muscles to reduce coughing, and moistening irritated airways. To perform steam inhalation, boil water and add medication like Vicks vaporub. Direct the steam into a tent made from an umbrella and sheet covering the patient, or have them sit near the boiling water. Treatment lasts 30 minutes to an hour twice a day. Burn risks and drafts should be avoided, and extra care taken with children.