Describe causes of Upper respiratory infections and drug therapy  Discuss t

Describe causes of Upper respiratory infections and drug therapy 
Discuss t

Describe causes of Upper respiratory infections and drug therapy 
Discuss triggers of asthma and treatment options
Discuss corticosteroids 
Describe chronic bronchitis and treatment options
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Your initial post should be at least 500 words, formatted and cited in the current APA style with support from at least 2 academic sources.