What is Exacerbation?

Exacerbation is a flare-up of a symptom involving breathing or the lungs. It can aggravate symptoms in Asthma and COPD. It can make breathing more difficult and treatment must be given immediately. You can find more information here: http://www.thoracic.org/sections/copd/for-patients/what-is-an-exacerbation.html
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