WHAT ARE THE CAUSES OF ASTHMA?

Factors that contribute to asthma or airway hyperreactivity may include any of the following:  Environmental allergens ( house dust,mites,animal allergens,fungi) Viral respiratory tract infectionsExercise, hyperventilationGastroesophageal reflux diseaseChronic sinusitis or rhinitisAspirin or NSAIDS hypersensitivity, sulphite sensitivityUse of beta-adrenergic receptor blockersObesityEnvironmental pollutants, tobacco smokeOccupational exposureGenetic factors like family history

What is Asthma?

Asthma is a chronic inflammatory disorder of airway in which many cells and cellular elements play a role. The chronic inflammation is associated with airway hyper-responsiveness that leads to recurrent episodes of wheezing, breathless, chest tightness and coughing particularly at night and it early morning