• Environmental: house dust mites, cockroaches, cats, seasonal pollens, occupational exposure (occupational asthma), tobacco smoke, weather changes (especially cold air), air pollution
  • Exercise
  • URI
  • Rhinitis and postnasal drip
  • Sinusitis
  • Aspiration
  • GERD
  • Drugs: beta blockers, aspirin, NSAIDs, histamine, methacholine, acetylcysteine, aerosolized pentamidine, any nebulized medication
  • Catamenial asthma (menstrual)
  • Stress

There's more to see -- the rest of this topic is available only to subscribers.

Last updated: December 1, 2014