Triggers of Asthma

• Upper respiratory infections ("colds" or "sinus infections")
  
• Allergens - pollen, house dust, house dust mites, animal dander, molds, foods, insects
  
• Strong odors
  
• Exercise
  
• Cold air
  
• Pollution - indoor and outdoor
  
• Emotional stress
  
• Drugs - aspirin, aspirin-like drugs, beta-blockers, ACE inhibitors
  
• Hyperventilation, laughing, crying