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Suwasáriya(Healthnet)
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What causes asthma?

Asthma is caused by inflammation of the airways. The inflammation or swellings of the airways make it very sensitive to a variety of factor. Environmental factors like tobacco smoke, dust mites, viral respiratory infections, domestic air pollution by mosquito coils, fire wood smoke from the josh sticks, cockroaches mould on the walls, humidity, are lead to increase asthma. Psychological stress and early introducing of antibiotics also lead to increase asthma.

Pollens , fumes, and chemicals may trigger asthma symptoms. Pet birds love birds, pigeons can worse asthma.

Some foods also trigger asthma.

Exercise induced asthma often represents under treated asthma.